Mario Chalmers hears the talk.

Some of it first-hand.

Some of it brought to him by intermediaries.

He is aware ABC's Jeff Van Gundy called him "the key to the series" for the Heat in these Eastern Conference finals against the Boston Celtics.

"I agree," Chalmers said Sunday afternoon.

He knows Dwyane Wade gave pretty much the same assessment, calling him "one of the biggest keys to the series" at both ends of the floor.

"No way around it," Wade said. "He has to play well for us."