Aniston’s backasswards crash!

Jennifer Aniston Fires Trainer

JENNIFER ANISTON works super-hard at working her bitchin’ bod, but our “Friend” angrily axed her personal trainer for pushing her WAY too hard!

Said My Tight-Thighs Spy: “Even at age 46, Jennifer gamely battled her way through every tough exercise this guy dictated – squat-walking up hills with weights, hanging upside down to do pullups, etc. – but finally, the … er, ‘fit hit the An,’ so to speak, when he ordered running-in-reverse drills. Jen quickly mastered the art of sprinting backwards – but disaster struck:

"A group of Japanese tourists strolled into her path and she blindly slammed into them (as somebody screamed what sounded like, ‘AHSO!’).”

Humbly apologizing to the agitated Asians, Jen fired her Train Wreck Trainer!