Sweat (undisclosed) left Thursday's training camp session early due to injury, Brad Biggs of the Chicago Tribune reports.
Sweat headed into the Bears' facility with a trainer but walked on his own as he exited the field. There is no confirmed injury or prognosis for the starting defensive end yet, so it is unclear whether he will need to miss any time. Jeremiah Martin and Austin Booker will likely see increased reps with the first-team defense if Sweat misses any time.