Tight end Lee Smith, who played for the Buffalo Bills, Oakland Raiders and Atlanta Falcons, is retiring from the league and is now set to be a youth mentor at the Triple F Elite Sports Training performance center that he's opening in Knoxville, Tennessee.

NFL free agency isn't the only avenue for offseason change. The new league year has also provided a number of trades. So, who's winning/losing on the deal-making front? Marc Sessler offers up his grades.

The have-nots didn't have it on Sunday afternoon, as winless squads in Washington, New York and Cincinnati all lost again. Here's what we learned from Sunday's Week 5 contests.

Graham Barfield breaks down Le'Veon Bell's workhorse role, Julian Edelman's upside without Gronk, Josh Allen's late-round appeal, and the Kenyan Drake and Kalen Ballage touch split in his AFC East team previews.

Will Andrew Luck dethrone Patrick Mahomes as the top quarterback in fantasy football. Marcas Grant runs down the AFC in the second part of his Roster Resets.

The Houston Texans continue to tinker with their secondary. Houston signed free-agent safety Jahleel Addae to a one-year contract on Thursday.

The Raiders announced they have signed free-agent tight end Luke Willson, who caught 13 passes for the Lions last year after logging five more productive seasons with the Seahawks.

The Jacksonville Jaguars ended their seven-game skid and shutdown the Indianapolis Colts' five-game winning streak in one day. Here's what else we learned from Sunday's Week 13 games.

CBS cameras caught Raiders coach Jon Gruden and QB Derek Carr engaged in multiple heated conversations over the course of the game, but the pair said there was nothing negative about the chats.

Raiders coach Jon Gruden addressed reporters Wednesday for the first time since the team traded receiver Amari Cooper to the Cowboys. He did his part to quell rumors of a potential Derek Carr trade.

After two stunning trades, there appears to be a rising concern among numerous veteran players in the Raiders' locker room over accountability, specifically as it pertains to head coach Jon Gruden.

Week 5's slate of matchups did not disappoint. We break down the highs and lows from Sunday's games. Here's what we learned.

Does Adrian Peterson have enough left in the tank to drive the Washington Redskins? Are the Cowboys leaving their first-round pick on the bench? Who's poised to catch passes from Tom Brady in New England? Gregg Rosenthal spotlights five position battles.

Clive Walford is going from a crowded tight end room to one in need of a veteran. Less than a week after being released by the Raiders, the fourth-year pass-catcher has been claimed by the Jets.

Clive Walford's run with the Oakland Raiders is coming to a close. The tight end reportedly has been released by the team following a disappointing 2017 campaign.

On Sunday, Raiders backup QB EJ Manuel will stand in for the injured Derek Carr. Lee Smith believes the QB has better options in Oakland which can help him succeed.

NaVorro Bowman's season is over. The San Francisco 49ers veteran linebacker suffered a torn Achilles' tendon in Sunday's loss. Check in on all of Monday's injury updates.

Bears receiver Kevin White suffered an ankle injury and did not return. He was having his best game as a pro at the time of the injury. Check in on the rest of Week 4's injuries.

Preseason depth charts have been released, and Alex Gelhar has combed through all of them to provide you with the necessary fantasy football insight as you prepare for your drafts.

Clive Walford came to life down the stretch of his rookie season. Can the Raiders tight end follow the Rob Gronkowski/Travis Kelce career model with a monster Year 2? Marc Sessler explores.

Now that the rosters have been (mostly) set, Marcas Grant is resetting each team's depth chart. He starts in the AFC West, where the Broncos have been replaced as the division's best fantasy option.

Veteran defensive end Justin Tuck expressed wonder at the Broncos' "unbelievable" defense this week. Will Denver shut down the Raiders' promising duo of Derek Carr and Amari Cooper?

Which college football program is best at producing NFL tight ends? We're taking a look back at the past 15 NFL drafts to determine which school is the real "TE U."

Will Peyton Manning send the Denver Broncos to the playoffs? Is a trade on the horizon for San Diego Chargers QB Philip Rivers? Chris Wesseling breaks down the wild AFC West.

NFL Network's Tom Pelissero shares Atlanta Falcons tight end Lee Smith gifted his signed jockstrap to John Feliciano.

Atlanta Falcons quarterback Matt Ryan finds tight end Lee Smith for a play-action TD.

Watch the Buffalo Bills vs. New England Patriots highlights from Week 16 of the 2020 season.

Buffalo Bills tight end Lee Smith is left all alone for 27-yard rumble after the catch.

Buffalo Bills guard Jon Feliciano tackles teammate tight end Lee Smith after TE's open TD grab.

Buffalo Bills tight end Lee Smith catches an 8-yard touchdown pass from quarterback Josh Allen.

Check out the fantasy performances that helped no one in Week 15.

Oakland Raiders quarterback Derek Carr finds tight end Lee Smith for a 3-yard touchdown.

Oakland Raiders tight end Lee Smith is left wide open for a touchdown catch vs. the Kansas City Chiefs.

Oakland Raiders quarterback Derek Carr converts fourth-and-1 to Lee Smith for 30-yard gain.