Dave Birkett

Detroit Free Press

MOBILE, Ala. - The agent for Calvin Johnson said today that the Detroit Lions receiver still has not decided whether to return for a 10th NFL season.

Johnson confided in several current and former teammates earlier this month that he was contemplating retirement because of the physical toll football has taken on his body.

Bus Cook, who's represented Johnson since the Lions took him with the second overall pick in the 2007 draft, said he does not know a timetable for when Johnson will make his decision.

"Nothing to report," Cook said before Senior Bowl practice today. "Have to wait and see. He has to think about what he's going to do and then go from there."

Johnson led the Lions with 1,214 yards receiving and nine touchdowns this year, but he's been slowed by ankle, knee and finger injuries in recent seasons.

He played in every game this year for the first time since 2012, when he set the NFL single-season record for receiving yards, but was limited in practice the final two months of the season by an ankle injury.

Johnson confirmed in a statement earlier this month that retirement was an option.

"Like many players at this stage of their career, I am currently evaluating options for my future," Johnson said in a statement released by the Lions. "I would expect to have a decision regarding this matter in the not too distant future."

If Johnson retires, the Lions will be left with Golden Tate and T.J. Jones as their top two receivers, and the position could become an even bigger priority this off-season.

If he returns, the team will have to decide what to do with his contract.

Johnson is slated to make almost $16 million this fall and has a salary-cap charge of just over $24 million.

So far, the Lions have not made any overtures about restructuring Johnson’s contract.

“I imagine most guys at the end of the season (have similar feelings),” Cook said. “I’ve been through that once, or twice, or three times. He’s tired.”

Mayhew on prowl: Former Lions general manager Martin Mayhew attended both Senior Bowl practices today and is looking for a personnel job in the NFL.

Mayhew has interviewed for high-level positions with the Cleveland Browns and Tennessee Titans in recent weeks. The Titans filled their vacancy, the Browns have not yet.

The Lions GM from 2008 until he was fired midway through last season, Mayhew declined interview requests from the Free Press.

Xanders interviews: Lions senior personnel executive Brian Xanders interviewed for the Browns’ executive vice president of player personnel job today, according to the Cleveland Plain Dealer.

Xanders wore a Lions hat while he watched South practice at the Senior Bowl today. He spent part of the session taking notes on offensive and defensive line drills.

Xanders and Sheldon White, the Lions’ interim GM for the second half of last season, both remain under employment with the team.

Contact Dave Birkett at dbirkett@freepress.com. Follow him on Twitter @davebirkett.

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