Celtics Coach Doc Rivers spoke with free agent Corey Maggette on the phone Thursday, and he is reportedly considering joining the NBA champions, according to The Boston Globe.

A league source claims that the Celtics have offered Maggette the full midlevel exception, expected to be worth $5.8 million.

"I don't want to hold the Celtics up or [general manager] Danny Ainge," said Maggette. "I talked to Doc . . . I'm not going to hold them up. I know they are still looking at James Posey. But I'm still weighing my options."

The Celtics are pursuing both Maggette and Posey, but it's unlikely they'll be able to sign both.