Baltimore Ravens running back Ray Rice (27) is stopped by Detroit Lions linebacker DeAndre Levy (54) during the first half of an NFL preseason football game in Baltimore, Friday, Aug. 17, 2012. (AP Photo/Patrick Semansky)

Baltimore Ravens wide receiver LaQuan Williams (15) is stopped by Detroit Lions defensive back John Wendling (29) during the first half of an NFL preseason football game in Baltimore, Friday, Aug. 17, 2012. (AP Photo/Patrick Semansky)

Detroit Lions quarterback Matthew Stafford (9) passes the ball during the first half of an NFL preseason football game against Baltimore Ravens in Baltimore, Friday, Aug. 17, 2012. (AP Photo/Nick Wass)

Detroit Lions defensive back Chris Houston (23) breaks up a pass intended for Baltimore Ravens wide receiver LaQuan Williams (15) during the first half of an NFL preseason football game in Baltimore, Friday, Aug. 17, 2012. (AP Photo/Patrick Semansky)

Baltimore Ravens quarterback Joe Flacco looks to pass during the first half of an NFL preseason football game against the Detroit Lions in Baltimore, Friday, Aug. 17, 2012. (AP Photo/Gail Burton)

Detroit Lions wide receiver Calvin Johnson (81) carries the ball for a first down with Baltimore Ravens defensive back Ed Reed (20) in tow during the first half of an NFL preseason football game in Baltimore, Friday, Aug. 17, 2012. (AP Photo/Gail Burton)

Detroit Lions defensive back Chris Houston (23) tackles Baltimore Ravens running back Bernard Pierce (30) during the first half of an NFL preseason football game in Baltimore, Friday, Aug. 17, 2012. (AP Photo/Gail Burton)

Baltimore Ravens wide receiver Jacoby Jones (12) attempts to run past Detroit Lions linebacker Tahir Whitehead (59) during the first half of an NFL preseason football game in Baltimore, Friday, Aug. 17, 2012. (AP Photo/Gail Burton)

Detroit Lions wide receiver Calvin Johnson (81) scores a touchdown as Baltimore Ravens defensive back Jimmy Smith (22) runs past during the first half of an NFL preseason football game in Baltimore, Friday, Aug. 17, 2012. (AP Photo/Patrick Semansky)

Aug 17, 2012; Baltimore, MD, USA; Detroit Lions wide receiver Calvin Johnson (81) gets tackled by Baltimore Ravens corner back Jimmy Smith (22) during the second quarter at M&T Bank Stadium. Mandatory Credit: Paul Frederiksen-US PRESSWIRE

Detroit Lions wide receiver Calvin Johnson (81) celebrates his touchdown with tight end Brandon Pettigrew (87) during the first half of an NFL preseason football game against Baltimore Ravens in Baltimore, Friday, Aug. 17, 2012. (AP Photo/Patrick Semansky)

Detroit Lions wide receiver Calvin Johnson, right, scores a touchdown as Baltimore Ravens defensive back Jimmy Smith (22) runs past during the first half of an NFL preseason football game in Baltimore, Friday, Aug. 17, 2012. (AP Photo/Nick Wass)

Detroit Lions wide receiver Titus Young (16) leaps into the end zone for a touchdown during the first half of an NFL preseason football game against Baltimore Ravens in Baltimore, Friday, Aug. 17, 2012. (AP Photo/Patrick Semansky)

Detroit Lions head coach Jim Schwartz reacts to a call during the first half of an NFL preseason football game against Baltimore Ravens in Baltimore, Friday, Aug. 17, 2012. (AP Photo/Patrick Semansky)

Baltimore Ravens wide receiver Tandon Doss (17) is stopped by Detroit Lions defensive back Ricardo Silva (39) and running back Stephfon Green (43) during the first half of an NFL preseason football game in Baltimore, Friday, Aug. 17, 2012. (AP Photo/Patrick Semansky)

Baltimore Ravens defensive back Sean Considine (37) and defensive back Cary Williams (29) stop Detroit Lions wide receiver Calvin Johnson (81) during the first half of an NFL preseason football game in Baltimore, Friday, Aug. 17, 2012. (AP Photo/Patrick Semansky)

Baltimore Ravens defensive back Sean Considine (37) stops Detroit Lions running back Keiland Williams (34) during the first half of an NFL preseason football game in Baltimore, Friday, Aug. 17, 2012. (AP Photo/Nick Wass)

Detroit Lions running back Joique Bell (35) losses control of the ball after being hit by Baltimore Ravens free safety Christian Thompson (33) during the second half of an NFL preseason football game in Baltimore, Friday, Aug. 17, 2012. The Lions defeated the Ravens 27-12. (AP Photo/Nick Wass)

Baltimore Ravens' Justin Tucker (6) kicks a field goal as Sam Koch (4) holds the ball during the second half of an NFL preseason football game against the Detroit Lions in Baltimore, Friday, Aug. 17, 2012. The Lions defeated the Ravens 27-12. (AP Photo/Patrick Semansky)

Baltimore Ravens cornerback Asa Jackson (25) carries the ball during the second half of an NFL preseason football game against Detroit Lions in Baltimore, Friday, Aug. 17, 2012. (AP Photo/Patrick Semansky)

Baltimore Ravens quarterback Tyrod Taylor (2) pulls away from Detroit Lions Nick Fairley (98), who's pulling his facemask, and defensive end Willie Young (79) during the first half of an NFL preseason football game in Baltimore, Friday, Aug. 17, 2012. (AP Photo/Gail Burton)

Baltimore Ravens quarterback Joe Flacco (5) turns away form the line looking for an open man during the first half of an NFL preseason football game against Detroit Lions in Baltimore, Friday, Aug. 17, 2012. (AP Photo/Nick Wass)

Detroit Lions quarterback Matthew Stafford (9) passes the ball during the first half of an NFL preseason football game against Baltimore Ravens in Baltimore, Friday, Aug. 17, 2012. (AP Photo/Nick Wass)

Baltimore Ravens running back Bobby Rainey (34) carries the ball between Detroit Lions defensive end Edmon McClam (75) and linebacker Doug Hogue (57) during the second half of an NFL preseason football game in Baltimore, Friday, Aug. 17, 2012. (AP Photo/Nick Wass)

during the second half of an NFL preseason football game against XXX in Baltimore, Friday, Aug. 17, 2012. The Lions defeated the Ravens 27-12. (AP Photo/Patrick Semansky)

Baltimore Ravens wide receiver Dorian Graham (13) breaks a tackle from Detroit Lions defensive back Ross Weaver (38) during the second half of an NFL preseason football game in Baltimore, Friday, Aug. 17, 2012. The Lions defeated the Ravens 27-12. (AP Photo/Nick Wass)

Baltimore Ravens linebacker Ray Lewis reacts as he is introduced before an NFL preseason football game against the Detroit Lions in Baltimore, Friday, Aug. 17, 2012. (AP Photo/Nick Wass)

Detroit Lions running back Joique Bell (35) carries the ball past Baltimore Ravens linebacker Nigel Carr (42) during the second half of an NFL preseason football game in Baltimore, Friday, Aug. 17, 2012. The Lions defeated the Ravens 27-12. (AP Photo/Nick Wass)

Baltimore Ravens running back Ray Rice (27) carries the ball during the first half of an NFL preseason football game against Detroit Lions in Baltimore, Friday, Aug. 17, 2012. (AP Photo/Nick Wass)

Baltimore Ravens cornerback Asa Jackson (25) carries the ball during the second half of an NFL preseason football game against Detroit Lions in Baltimore, Friday, Aug. 17, 2012. (AP Photo/Patrick Semansky)

Baltimore Ravens quarterback Tyrod Taylor (2) pulls away from Detroit Lions Nick Fairley (98), who's pulling his facemask, and defensive end Willie Young (79) during the first half of an NFL preseason football game in Baltimore, Friday, Aug. 17, 2012. (AP Photo/Gail Burton)

Baltimore Ravens running back Bobby Rainey (34) carries the ball between Detroit Lions defensive end Edmon McClam (75) and linebacker Doug Hogue (57) during the second half of an NFL preseason football game in Baltimore, Friday, Aug. 17, 2012. (AP Photo/Nick Wass)

Baltimore Ravens quarterback Joe Flacco (5) turns away form the line looking for an open man during the first half of an NFL preseason football game against Detroit Lions in Baltimore, Friday, Aug. 17, 2012. (AP Photo/Nick Wass)

during the second half of an NFL preseason football game against XXX in Baltimore, Friday, Aug. 17, 2012. The Lions defeated the Ravens 27-12. (AP Photo/Patrick Semansky)

Baltimore Ravens wide receiver Dorian Graham (13) breaks a tackle from Detroit Lions defensive back Ross Weaver (38) during the second half of an NFL preseason football game in Baltimore, Friday, Aug. 17, 2012. The Lions defeated the Ravens 27-12. (AP Photo/Nick Wass)