The Minnesota Vikings placed tight end John Carlson on injured reserve, ending his season.
Carlson recently suffered the third concussion of his career, casting doubt on his NFL future.
Carlson finished the season with 32 receptions for 344 yards in eight starts.
Carlson signed a five-year, $25 million contract with the Vikings in 2012.
“We haven't had that discussion, but I'm sure it is one that we eventually will have,” Vikings coach Leslie Frazier said when asked if he had talked with Carlson about not playing football anymore.
The Vikings promoted running back Joe Banyard and defensive end Justin Trattou to the active roster from the practice squad and cut defensive back Robert Steeples.
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Aaron Wilson covers the Ravens for The Baltimore Sun.