Indianapolis Colts running back Marlon Mack suffered an ankle injury and is questionable to return against the Jacksonville Jaguars in Week 1 at TIAA Bank Field.
Leaking out as a safety valve, Mack caught a pass from Philip Rivers in the second quarter and immediately fell to the ground clutching his ankle. He limped off the field with help from the training staff. It was a non-contact injury.
Up to this point, Mack had taken four carries for 26 yards while catching all three of his targets for 30 yards.
In his place, second-round pick Jonathan Taylor and receiving back Nyheim Hines will be working in the backfield. Jordan Wilkins is also active.