Seattle Seahawks' Richard Sherman reacts after tipping a pass intended for San Francisco 49ers' Michael Crabtree (15) in the final seconds of the second half of the NFL football NFC Championship game Sunday, Jan. 19, 2014, in Seattle. Malcolm Smith intercepted the tipped pass. The Seahawks won 23-17 to advance to Super Bowl XLVIII. (AP Photo/Matt Slocum)

Seattle Seahawks' Richard Sherman tips a pass intended for San Francisco 49ers' Michael Crabtree (15) in the final seconds of the second half of the NFL football NFC Championship game Sunday, Jan. 19, 2014, in Seattle. Malcolm Smith intercepted the tipped pass. The Seahawks won 23-17 to advance to Super Bowl XLVIII. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers running back Anthony Dixon (24) dives for a touchdown during the NFC Championship NFL football game against the Seattle Seahawks at CenturyLink Field on Sunday, Jan. 19, 2014, in Seattle. The Seahawks won 23-17. (Perry Knotts/NFL)

San Francisco 49ers quarterback Colin Kaepernick (7) throws a touchdown pass during the NFL football NFC Championship game against the Seattle Seahawks, Sunday, January 19, 2014, in Seattle. The Seahawks defeated the 49ers 23-17 to advance to Super Bowl XLVIII. (AP Photo/Paul Abell)

Seattle Seahawks running back Marshawn Lynch (24) runs for a 40-yard touchdown during the NFC Championship NFL football game against the San Francisco 49ers at CenturyLink Field on Sunday, Jan. 19, 2014, in Seattle. The Seahawks won 23-17. (Perry Knotts/NFL)

Seattle Seahawks wide receiver Jermaine Kearse (15) makes a 35-yard touchdown reception during the NFC Championship NFL football game against the San Francisco 49ers at CenturyLink Field on Sunday, Jan. 19, 2014, in Seattle. The Seahawks won 23-17. (Perry Knotts/NFL)

Seattle Seahawks cornerback Byron Maxwell, left, intercepts a pass intended for San Francisco 49ers wide receiver Michael Crabtree, right, in the second half of an NFL football game, Sunday, Dec. 8, 2013, in San Francisco. (AP Photo/Ben Margot)

San Francisco 49ers wide receiver Anquan Boldin, right, catches the ball as Seattle Seahawks cornerback Richard Sherman, left, defends in the first half of an NFL football game, Sunday, Dec. 8, 2013, in San Francisco. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers running back Frank Gore, left, carries the ball on a 51-yard run as Seattle Seahawks free safety Earl Thomas (29) and cornerback Richard Sherman (25) look on in the fourth quarter of an NFL football game, Sunday, Dec. 8, 2013, in San Francisco. The 49ers defeated the Seahawks 19-17. (AP Photo/Ben Margot)

Seattle Seahawks' Cliff Avril, left, forces a fumble by San Francisco 49ers quarterback Colin Kaepernick in the first half of an NFL football game, Sunday, Sept. 15, 2013, in Seattle. The Seahawks recovered the ball on the play. (AP Photo/Elaine Thompson)

San Francisco 49ers defensive back Eric Wright, left, looks on as Seattle Seahawks wide receiver Golden Tate makes a catch in the first half of an NFL football game, Sunday, Dec. 8, 2013, in San Francisco. (AP Photo/Marcio Jose Sanchez)

Seattle Seahawks' quarterback Jon Kitna (7) gets off a pass while under pressure of San Francisco 49ers' safety Tim McDonald Thursday, Aug. 19, 1999, during the first quarter of a pre-season game in San Francisco. (AP Photo/Ben Margot)

San Francisco 49ers Steve Young plays in a game against the Seattle Seahawks at Candlestick Park in San Francisco, CA. August 15, 1991. ( AP Photo/Tom DiPace)

Jerry Rice (80) of the San Francisco 49ers dives into the endzone for a touchdown after catching a 30-yard pass from Joe Montana during the second quarter on Friday, Sept. 1, 1989 in Seattle, against the Seahawks. Unable to make the play for the Seahawks in Dwayne Harper (29). (AP Photo/Bill Chan)

San Francisco 49ers running back Wendell Tyler (26) scores during an NFL football game against the Seattle Seahawks on Sunday, Aug. 24, 1984 in San Francisco. The 49ers won the game 17-7. (AP Photo/Greg Trott)

San Francisco 49ers running back Lawrence Phillips is tackled by an unidentified Seattle Seahawks players in the second quarter, Thursday, Aug. 19, 1999 in San Francisco. This was Phillips' first game as a 49ers. (AP Photo/Paul Sakuma)

Seattle Seahawks wide receiver James McKnight (82) catches a 21-yard touchdown pass from quarterback Warren Moon in the second quarter of their game against the San Francisco 49ers Sunday, Dec. 21, 1997, in Seattle. Defending on the play is San Francisco's Merton Hanks (36). (AP Photo/Elaine Thompson)

San Francisco quarterback Joe Montana (16) passes during an NFL football game against Seattle Seahawks on Sunday, Nov. 25, 1985, in San Francisco. The 49ers won the game, 19-6. (AP Photo/Greg Trott)

San Francisco 49ers running back Roger Craig looks for a hole through Seattle Seahawks defenders during the first quarter of action on Friday, August 31, 1990 at Candlestick Park, San Francisco. At right is Seahawks linebacker Rufus Porter (97). (AP Photo/Paul Sakuma)

San Francisco 49ers tight end Brent Jones (84) during an NFL pre-season football game against the Seattle Seahawks, Sunday, August 26, 1995 in San Francisco. The 49ers won the game, 17-7.

San Francisco 49ers running back Brian Westbrook (20) heads downfield as he is pushed by Seattle Seahawks defensive back Marcus Trufant (23) during an NFL game, Sunday, Dec. 12, 2010 in San Francisco. The 49ers won the game, 40-21. (AP Photo/Greg Trott)

San Francisco 49ers wide receiver Jerry Rice (80) makes a catch during an NFL game against the Seattle Seahawks on Sunday, 1993, in San Francisco. (AP Photo/Greg Trott)

San Francisco 49ers Ronnie Lott pulls down Seattle Seahawks receiver Steve Largent (80) for a short gain in the first quarter at Candlestick Park in San Francisco, Aug. 29, 1986. (AP Photo/Paul Sakuma)

Seattle quarterback Dave Krieg (17), goes over John Yarno (51), as he looks for a gain for the Seahawks against San Francisco in the first half of their NFL pre-season game in Seattle, Sept. 3, 1982. Also shown is Seattle's Dennis Boyd, 68. (AP Photo)

Seattle Seahawks defensive tackle Sam Adams (98) fights his way through the blocking of 49ers center Jesse Sapolu (61) during a 7 to 17 Seattle Seahawks preseason loss to the San Francisco 49ers on August 26, 1995 at 3Com Park in San Francisco, California. (AP Photo/Paul Spinelli)

Seattle Seahawks running back Michael Robinson (26) eludes San Francisco 49ers nose tackle Aubrayo Franklin (92) during an NFL game on September 12, 2010. The Seahawks defeated the 49ers 31-6. (AP Photo/Kevin Terrell)

Seattle Seahawks running back Marshawn Lynch (24) is dragged during an NFL game against the San Francisco 49ers linebacker Patrick Willis (52), Sunday, Dec. 12, 2010 in San Francisco. The 49ers won the game, 40-21. (AP Photo/Greg Trott)

San Francisco 49ers Frank Gore (21) during an NFL football game against The Seattle Seahawks Sunday October 26, 2008 in San Francisco. The Seattle Seahawks defeated The San Francisco 49ers 34-13 at Candlestick Park in 2008 Regular Season Week 8 action. (AP Photo / Bill Nichols)

FILE - In this Sept. 20, 2009, file photo, San Francisco 49ers tight end Vernon Davis, left, carries the ball past Seattle Seahawks safety Deon Grant (24) during an NFL football game in San Francisco. Davis vowed to make a big impact for the 49ers in new offensive coordinator Jimmy Raye's system. (AP Photo/Marcio Sanchez, File)

Seattle Seahawks running punter Jon Ryan (9) makes a diving attempt at a tackle of San Francisco 49ers punt returner Allen Rossum (20) during an NFL game, Sept. 20, 2009 in San Francisco. The 49ers won the game, 23-10. (AP Photo/Greg Trott)

Seattle Seahawks running back Justin Forsett #20 during an NFL football against the San Francisco 49ers at Candlestick Park in San Francisco Sunday September 20, 2009. The San Francisco 49ers defeated the Seattle Seahawks 23 - 10 in regular season week 2 action. (Ap Photo/ Bill Nichols)

San Francisco 49ers wide recieiver Brandon Jones (81) makes a leaping catch during an NFL game against the Seattle Seahawks, Dec. 6, 2009 in Seattle. The Seahawks won the game, 20-17. (AP Photo/Greg Trott)

Seattle Seahawks Rocky Bernard (99), Lofa Tatupu (51), Leroy Hill (56), and Brian Russell (25) bring down San Francisco 49ers running back Frank Gore, second from left, in the second quarter of an NFL football game Sunday, Oct. 26, 2008, in San Francisco. (AP Photo/Ben Margot)

Seattle Seahawks fullback Leonard Weaver (43) carries the ball against San Francisco 49ers safety Michael Lewis during an NFL football game in San Francisco, Sunday, Oct. 26, 2008. (AP Photo/Paul Sakuma)

San Francisco 49ers heads tight end Delanie Walker (46) heads downfield during an NFL game against the Seattle Seahawks, Sunday, Oct. 26, 2008 in San Francisco. (AP Photo/Greg Trott)

Seattle Seahawks tight end John Carlson hangs on to the ball as San Francisco 49ers Keith Lewis tries to take it during an NFL football game Sunday, Sept. 14, 2008, in Seattle. (AP Photo/Elaine Thompson)

San Francisco 49ers wide receiver Arnaz Battle catches the ball during an NFL football game against the Seattle Seahawks Sunday, Sept. 14, 2008, in Seattle. (AP Photo/Ted S. Warren)

Seattle Seahawks running back Shaun Alexander (37) heads downfield during an NFL game against the San Francisco 49ers, Sept. 30, 2007 in San Francisco. (AP Photo/ Greg Trott)

Seattle Seahawks quarterback Matt Hasselbeck (8) smiles after greeting former teammate and San Francisco 49ers back-up quarterback Trent Dilfer after an NFL football game Monday, Nov. 12, 2007, in Seattle. The Seahawks won 24-0. (AP Photo/Elaine Thompson)

SEATTLE - NOVEMBER 12: Quarterback Matt Hasselbeck #8 of the Seattle Seahawks passes against the San Francisco 49ers on Sunday, November 12, 2007 in Seattle, Washington. Seattle won the game 24-0. (AP Photo/Thomas E. Witte)

SEATTLE - NOVEMBER 12: Quarterback Alex Smith #11 of the San Francisco 49ers drops back to hand off against the Seattle Seahawks on Sunday, November 12, 2007 in Seattle, Washington. Seattle won the game 24-0. (AP Photo/Thomas E. Witte)

San Francisco 49ers quarterback J.T. O'Sullivan is tackled by Seattle Seahawks Brandon Mebane during an NFL football game Sunday, Sept. 14, 2008, in Seattle. (AP Photo/Elaine Thompson)

Seattle Seahawks quarterback Matt Hasselbeck looks for room to pass under pressure from San Francisco 49ers' John Engelberger (95) and Derrick Hamilton (88) in the first quarter in Seattle, Sunday, Sept. 26, 2004. (AP Photo/John Froschauer)

San Francisco 49ers' Brandon Lloyd, right, makes a one-handed catch while being defended by Seattle Seahawks' Kelly Herndon, left, in the first half on Sunday, Nov. 20, 2005, in San Francisco. (AP Photo/Marcio Jose Sanchez)

Seattle Seahawks running back Shaun Alexander (37) celebrates after a rushing touchdown against the San Francisco 49ers in the first half on Sunday, Nov. 20, 2005, in San Francisco, Calif. (AP Photo/Marcio Jose Sanchez)

Seattle Seahawks' Shaun Alexander jumps between San Francisco 49ers' Patrick Willis, left, and Mark Roman, right, during the third quarter of an NFL football game in San Francisco, Sunday, Sept. 30, 2007. The Seahawks won 23-3. (AP Photo/Jeff Chiu)

San Francisco 49ers wide receiver Taylor Jacobs (88) during an NFL football game against the Seattle Seahawks, Sunday, September 30, 2007 in San Francisco. The Seahawks won the game, 23-3.

San Francisco 49ers' Garrison Hearst (20) is taken down by Seattle Seahawks' Levon Kirkland (99) in the first quarter Saturday, Aug. 25, 2001, in San Francisco. (AP Photo/George Nikitin)

Seattle Seahawks running back Ricky Watters (32) evades San Francisco 49ers' Monty Montgomery on a first-quarter run Saturday, Aug. 19, 2000, in Seattle. Watters made a first down on the play. (AP Photo/Elaine Thompson)