Gallup was forced out of Thursday's game against the Buccaneers with an ankle injury, David Moore of The Dallas Morning News reports.
Gallup was off to a solid start with four receptions for 36 yards in the first half, but he was targeted just once in the third quarter before exiting the game. The severity of Gallup's injury is unclear. Fellow wideout Cedrick Wilson figures to handle extra reps in Gallup's place.