Tim Tebow Ripped Topless QB Workout ... At USC

EXCLUSIVE
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Newsflash:
Tim Tebow is still jacked ... and TMZ Sports has photos of the teamless wannabe QB showing off his divine physique Wednesday during a shirtless workout at USC.

As we previously reported, Tebow has become a regular on the Trojan campus -- often running drills with high profile QB coaches.

Even though he's not currently signed to a pro squad -- and recently took a job as an analyst for ESPN -- it appears Tebow is refusing to give up on his NFL dream. 

Gotta respect the hustle ... and the biceps.