HOUSTON (AP) — Joe Mixon has carried Houston’s offense in the three games since he returned from an injury. The running back could be even more important this week with the Texans dealing with another injury to a top receiver after Stefon Diggs went down Sunday. Diggs sustained a non-contact injury to his right knee and coach DeMeco Ryans refused to provide any details on his injury Monday, saying only that he’s still being evaluated.

His injury comes with leading receiver Nico Collins out for at least one more game after being placed on injured reserve with a hamstring injury. Mixon has had at least 100 yards rushing and a TD run in three straight games. He finished with 102 yards rushing and a touchdown in Houston’s 23-20 win over Indianapolis on Sunday.

“Joe showed up big time for us when we needed him most making plays,” Ryans said. Mixon, who is in his first season in Houston after a trade from Cincinnati, became the first player in NFL history to have at least 100 yards rushing and a TD run in four of his first five games with a team. The only time he didn’t have 100 yards and a score this season came in Week 2 when he missed almost the entire second half with an ankle injury that kept him out the next three games.

He ranks third in the NFL by averaging 100.6 yards rushing a game. If Diggs is out this week, Tank Dell is the most likely candidate to pick up the slack in the passing game.

His production has dropped off this season after a standout rookie yea.