Colts WR T.Y. Hilton could miss the next month due to calf injury
Hilton was limited in practice on Wednesday and did not practice at all on Thursday.
The wide out also missed a game earlier this season with a quad issue.
In six games this year overall, Hilton has logged 32 catches for 360 yards and five touchdowns.
Should Hilton be out for an extended period of time, it would be a devastating blow to a Colts team that is thin on receiving talent as it is and is currently clinging to a half-game lead over the Houston Texans for first place in the AFC South.
Hilton, who played his collegiate football at Florida International, was originally selected by Indianapolis in the third round (92nd pick overall) of the 2012 NFL Draft.
He played in 15 games during his rookie campaign and was impressive, catching 50 passes for 861 yards and seven scores. Hilton then broke out during his second season, hauling in 82 receptions for 1,083 yards while reaching the end zone five times.
The 29-year-old proceeded to make his first Pro Bowl appearance in 2014, which began a stretch of four straight trips to the Pro Bowl between 2014 and 2017. His best year during that span came in 2016, when he led the NFL with 1,448 receiving yards and snared 91 balls with six touchdowns.
Last year, Hilton registered 76 catches for 1,270 yards and five touchdowns.
The Colts will take on the Pittsburgh Steelers on Sunday afternoon.