LATROBE, Pa. -- Pittsburgh Steelers rookie tight end DJ Thomas-Jones suffered a ‘potentially significant’ injury on Sunday during training camp, head coach Mike Tomlin said.

Former Patriots tight end Jonnu Smith isn’t having a great start with his new team. Smith reportedly started the first day of Steelers training camp on Thursday in his uniform during workouts, but by the end of it, he was in street clothes and didn’t participate in the team period.