The DOGMA star has already booked J.Lo's fitness coach GUNNAR PETERSON for several sessions and friends claim he will not rest until he has lured Petterson away from his ex.
One insider tells Britain's DAILY MIRROR newspaper, "Ben and Jen haven't crossed paths because she's been in Miami with husband Marc Anthony. But once she's back in LA it will be crazy.
"I can't imagine she'll be delighted to discover her ex is working out at her gym. Of all the trainers Ben could use, it's hilarious that he picked Gunnar."
But it's unlikely that the JENNY FROM THE BLOCK diva will give up Peterson without a fight - she's reportedly so committed to her sessions with him that she gets up at 4.45am every morning for hour-long workouts.15/09/2004 13:17