Injury update: Cliff Avril to miss finale

RENTON, Wash. -- Seattle Seahawks coach Pete Carroll said defensive end Cliff Avril will not play Thursday against Oakland in the final preseason game, and Carroll doesn’t know if Avril will be ready for the season opener against Carolina.

Avril was one of Seattle's top off-season acquisitions and a free agent from Detroit who was viewed as a player that could help improve the Seahawks' pass rush. But he aggravated a hamstring injury last week and has not played in the preseason.

“That was a whole week ago, way back when,” Carroll said after practice Monday. “That’s why he isn’t practicing. We don’t know if he’s going to be ready [for the opener].”

Starting defensive tackle Brandon Mebane suffered a groin injury in practice Monday, but Carroll didn’t know if Mebane will miss any practice time.

Tight end Zach Miller was back practicing full speed and said he wants to play Thursday, but Carroll is being cautious.

“Zach is ready to go and could play this weekend,’’ Carroll said. “He wants to play, but we’ve been shooting for the opener all along.”

Starting fullback Michael Robinson continues to miss practice with an unspecified illness.

“He’s better, but he was really sick,” Carroll said of Robinson. “There still are some concerns with whatever he’s got. I don’t know a lot about it.”

Defensive end Chris Clemons, who had ACL surgery in the off-season, continues to rehab his knee, but when he’ll return to the field isn’t known.

“Chris had a terrific workout for 40 straight minutes [Sunday],” Carroll said. “He’s making great progress. He feels really good and he’s not favoring the knee, but I don’t know how many games or how many weeks away he is.”

Guard James Carpenter returned to practice Monday after being out with a foot injury. If Carpenter is healthy, he could get in the mix for one of the starting spots at guard.