Questions about when Tyrann Mathieu will return from his December knee injury have buzzed about the Arizona Cardinals' facility.
Several weeks after coach Bruce Arians said he expected Mathieu to start the season on the PUP list, general manager Steve Keim believes that the Honey Badger playing in the opener is a possibility.
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"We think there's a chance that he'll be back by the beginning of the season," Keim told NFL Media's Adam Schein on "Mad Dog Sports Radio," via ESPN.com.
Mathieu tore the ACL and LCL in his left knee while returning a kick during a Week 14 contest last season. Initial diagnosis put the defensive back out nine months, but Mathieu appears to be making progress toward returning earlier.
"He has been a gym rat," Keim said. "He's in here all the time. We have to kick him out of the building and tell him 'Tyrann, go home for a little bit.' He's always in the training room doing his rehab."
The Cardinalsopen the 2014 season against the San Diego Chargers, as part of the "Monday Night Football" doubleheader.
Mathieu has consistently said he wants to be back by training camp in July. Keim has no problem with the 22-year-old safety pushing toward that end.
"I told him, 'Ty, don't listen to anybody because nobody can tell you and pinpoint the exact return date. That's up to you,'" Keim said. "And he's a machine. He's the kind of guy that I really think can come back a lot earlier than people anticipated."
As we saw with Robert Griffin III last season, being back by Week 1 shouldn't be the goal if Mathieu can't perform at the level he did in 2013. If he can, however, it would be a boon for a Cardinals team trying to tackle the NFL's toughest division.
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