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By David Newton and Marty Smith
ESPN.com

SONOMA, Calif. -- Casey Mears and Mark Martin look to be on the move, and their futures might be linked.

Mears' future with Hendrick Motorsports appears in jeopardy, ESPN.com has learned. Although Mears has one year left on his contract, team owner Rick Hendrick would not commit to the driver of the No. 5 car beyond this season.

"I'm committed to him right now," Hendrick said on Sunday at Infineon Raceway. "I'm committed to him making that car run better right now."

Earlier on Sunday, sources told ESPN.com that Martin would leave Dale Earnhardt Inc. Later, ESPN.com learned that he would replace Mears, making one last full-time run at a championship.

John Story, the vice president of motorsports at DEI, said there are plans to put Aric Almirola into a full-time ride next season. Almirola currently is splitting the No. 8 with the 49-year-old Martin. He indicated the full-time ride would be in the No. 8.

Sources: Martin to leave DEI, replace Mears in No. 5....