Scott Chandler, the tight end for the Bills for several years who spent 2015 in New England, could be done with football after undergoing knee surgery earlier this week.
Chandler was drafted by the San Diego Chargers in the fourth round of the 2007 draft. He spent 2007 and 2008 with San Diego (though he was on IR for the '08 season) before landing with the Dallas Cowboys in 2009, spending two seasons bouncing back and forth between the practice squads and active rosters of the Cowboys and Giants before ultimately landing with the Buffalo Bills late in the 2010 season.
He wound up spending four more years with the Bills, ultimately catching 181 passes for 2,112 yards and 17 touchdowns during that stint. He then landed with the New England Patriots for the 2015 season, playing No. 2 to Rob Gronkowski for most of the year and filling in for Gronk as the No. 1 tight end when he missed time. He caught 23 passes for 259 yards and four scores.
Chandler wound up needing knee surgery at the end of the season, though, and according to this Twitter post from his wife, Alissa, that surgery may end his career.