16 Marcus Johnson WR

Johnson, who was placed on injured reserve Tuesday, will undergo surgery on a torn ligament in his right ankle, Joel A. Erickson of The Indianapolis Star reports.

Johnson's role steadily increased in the Colts' passing attack as injuries piled up within the receiving corps, culminating with his first career touchdown Sunday against the Jets. During that contest, though, he suffered a serious ankle injury that may end his season. To account for the lingering injuries to T.Y. Hilton (hamstring), Ryan Grant (ankle) and Jack Doyle (hip), the Colts signed veteran wide receiver Dontrelle Inman on Tuesday.

Johnson (ankle) was placed on injured reserve Tuesday, Adam Caplan of SiriusXM Radio reports.

It's another injury for the Colts wide receiving unit, as Ryan Grant (ankle) was also forced out of Sunday's loss to the Jets. With T.Y. Hilton still nursing a hamstring injury, Indianapolis is dealing with serious depth issues at wide receiver. Now that Johnson's season is likely over, the Colts elected to bring in free agent Dontrelle Inman on Tuesday, which should give them some much-needed stability at the position given his four years of NFL experience, most of which came with the Chargers.

Johnson suffered an ankle injury during Sunday's loss to the Jets, Kevin Bowen of 1070 The Fan reports.

Johnson had his best game of the season Sunday, catching two balls for 52 yards and his first NFL touchdown. Both he and Ryan Grant (ankle) left the game early. Those injuries, coupled with T.Y. Hilton's ongoing hamstring injury, leave the Colts thin at wide receiver.

Johnson had two receptions on three targets for 52 yards, including a 34-yard touchdown, in Sunday's loss at the Jets.

Johnson played 34 of the offense's 69 snaps, getting more playing time when Ryan Grant left with an ankle injury. Johnson is fourth on the depth chart, but could get more playing time next week if T.Y. Hilton (hamstring) remains out and Grant is also sidelined.

Johnson had two receptions for 26 yards on two targets in Thursday's loss at New England.

Both of Johnson's receptions came late in the fourth quarter after Zach Pascal struggled. The Colts may have used him anyway as they were behind in in passing situations, but Johnson has a chance to pass Pascal on the depth chart.