Kansas City Chiefs right tackle Jeff Allen exited Saturday’s game against the Arizona Cardinals with a knee injury, and the team announced he will not return. Allen started the game at right tackle but went down early, and was replaced by Donald Stephenson.

It’s unclear if the injury is serious, but he was taken to the locker room on the cart and wasn’t able to put much weight on the injured leg. Allen only recently was named the Chiefs starting right tackle, with Stephenson the favorite to win the job prior to the team moving Allen to that position.

Allen was previously going to start at right guard, but the team liked his versatility. Stephenson will now likely be the right tackle going forward, if the injury is serious enough to force Allen to miss any time.

White, a 6’3, 215-pound receiver, had 109 catches, 1,447 yards and 10 touchdowns as a senior at West Virginia last year. He was the second receiver in the draft taken behind Oakland’s Amari Cooper.

The Chiefs’ offense got out to a shaky start, with starting quarterback Alex Smith throwing an interception. He finished 6 for 10 with 42 yards and the pick. Backup Chase Daniel fared quite a bit better, throwing three touchdowns, while wide receiver Fred Williams managed six receptions for 82 yards and a touchdown.

For the Cardinals, Carson Palmer looked effective as usual, completing all four of his passes for 77 yards. Most importantly, the Cardinals didn’t allow Palmer to get sacked. Keeping him protected will be the prime objective this season, and they did that on Saturday.

In terms of preparation for the season, both teams will learn more when Green Bay is on offense; the Packers can evaluate their young receivers and the Saints can work on strengthening their defense.