FRISCO -- Cowboys left guard Xavier Su'a-Filo received some good news Monday after injuring his left eye in Sunday's loss in Indianapolis.

The veteran offensive lineman received a "positive checkup this morning," Cowboys coach Jason Garrett said at his Monday news conference. "Still doesn't have great vision coming out of that eye, but the doctors are optimistic."

It appeared that Su'a-Filo was poked in the eye by teammate La'el Collins while trying to block for Ezekiel Elliott on a fourth-down run early in the second quarter. Su'a-Filo exited and never returned. Adam Redmond played the remainder of the game at left guard. Su'a-Filo's eye was swollen shut after the game.

"He certainly had a situation that was a little scary," Cowboys executive vice president Stephen Jones said Monday on 105.3 The Fan's G-Bag Nation show [KRLD-FM]. "But as it turned out, it doesn't look like he has any damage to his eye, which is big."

Linebacker Sean Lee only played seven snaps on Sunday in his first game back since injuring his hamstring in Week 9.

"Sean was not going to play a lot in the game and we thought he might play 10, 12 depending on how the game went," Garrett said. "He did play the seven snaps and handled it well. He was around the ball a little bit and did a good job of keying, diagnosing. It was positive. We'll just see how he is and how he handles the work and proceed forward with what his plan is."

Twitter: @jonmachota