Boston Celtics team president Danny Ainge and team physician Brian McKeon announced Saturday afternoon that Shaquille O'Neal (right calf) will miss Game 1 of the Celtics' first-round series with the New York Knicks after he failed to complete a running test this morning at the team's practice facility in Waltham. O'Neal suffered the injury in Boston's April 4 game with the Pistons and hasn't played since.

The injury involves the calf and Achilles' tendon in O'Neal's leg. He had shown improvement during the week, McKeon said, as O'Neal received around-the-clock treatment and massage for the injured area. But when the team put him through a simulated running plan Saturday, O'Neal could only go a few minutes before the pain became too great.

Calf injuries, McKeon said, are among the hardest for doctors to treat. Nothing really helps except rest. A cortisone shot wouldn't really be effective, either, despite O'Neal's willingness to take one.