Biltmore Hotel, Los Angeles - Former WBC middleweight champion Julio Cesar Chavez Jr. was sweating off the pounds with hard training at the very late hour on Monday night, as his father Julio Cesar Chavez Sr. and Zanfer Promotions' Sean Gibbons looked on. Actor and director Danny DeVito stopped by to watch Chavez get in some late night work.

Chavez returns on Saturday night at the StubHub Center in Carson, California. He faces Brian Vera in an HBO televised main event.