Ex-Pacers stud Austin Croshere just pledged his support for Andew Bynum ... telling TMZ Sports, Indiana's head coach Frank Vogel will REVIVE the fallen superstar's career.
The former 1st round pick -- and current Pacers analyst -- was in Malibu ... when he told us there's no doubt the struggling 7-footer will turn things around with Vogel's help.
The former All-Star center signed with the Pacers earlier this week ... after bouncing around the league amidst rumors he had lost his interest in basketball.
But Croshere says the Pacers 40-year-old coach Vogel will succeed in getting through to Bynum ... where veteran guys like Mike Brown and Tom Thibodeau failed.
Check out the clip -- gotta admire the guy's optimism ... and/or loyalty.
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