While Antoine Walker's body has been an off-limits topic around the Celtics since Rick Pitino left town, the co-captain's trainer is ready to show him some tough love when he gets back in earnest to his summer conditioning program.

Trainer Tim Grover, renowned for helping keep Michael Jordan in prime shape well into his basketball golden years, has a clear plan in mind when Walker checks in soon. And much of the blueprint deals with nutritional issues.

``We're going to get back his explosiveness, decrease his body fat percentage and take care of his lower extremities,'' said Grover, who took in the night session at the NBA's pre-draft camp last night. ``He needs to work on his legs to keep them strong for the full season.''