The Dallas Cowboys have injury concerns surrounding two key starters after their 24-16 loss to the Tampa Bay Buccaneers on Thursday night. Wide receiver CeeDee Lamb dealt with quadriceps tightness, while left tackle Tyler Guyton left the game with a back injury.

ESPN's Todd Archer reported that Lamb's quadriceps tightened up after he took a hit for the second consecutive game. That explains why the star receiver was not on the field during the closing stages against Tampa Bay.

“CeeDee Lamb's quadriceps tightened up after taking a hit for the second straight game, which is why he wasn't on the field at the end of the game. Tyler Guyton had a back injury. X-rays at the stadium were good, but he will get more examinations on Friday,” Archer tweeted.

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Lamb previously injured the same thigh during Dallas' Week 3 win over the Houston Texans. He entered Thursday's matchup after catching 17 passes for 189 yards and a touchdown against Houston, but his production dropped significantly against Tampa Bay.