Allen Park — Joseph Fauria was walking around Lions' headquarters Friday with crutches and a boot on his injured ankle.

The second-year tight end suffered the injury Wednesday night away from the facility. He told the team he tripped at home and twisted his ankle, something "innocent" as coach Jim Caldwell said Thursday.

The team is looking into Fauria's account of the injury, but on Friday, Caldwell stood by the story.

"I addressed that yesterday," Caldwell said. "If you check those transcripts, I'm sure you can probably get my answer on that one."

On Thursday, Caldwell said, "It was one of those innocent things around the house and ended up misstepping and twisting his ankle."

Caldwell on Friday declined to provide the results of Fauria's MRI Thursday.

"I'm not going to do anything other than direct you right to our medical report," he said.

After Friday's podium interview, Caldwell was asked if Fauria sustained the injury in another way.

"Exactly what I told you yesterday is what I know," he said. "That's what I know."

With Fauria likely out for Sunday's game against the New York Jets, the Lions could promote practice squad tight end Jordan Thompson. Brandon Pettigrew will serve his typical blocking-focused role, and rookie Eric Ebron will see an uptick in playing time. But teams typically want three tight ends available on game day.

Caldwell said the Lions could also use an offensive lineman to help fulfill tight end duties if necessary. The team could also compensate by utilizing other positions, including the possibility that wide receiver Ryan Broyles could be active to add another pass catcher.

If Fauria's injury is long term, the Lions could scan the free-agent market next week for another option at tight end.