Rob Gronkowski is having the time of his life during the New England Patriots' trip to Southern California.

Bill Belichick's team is in San Diego ahead of its matchup with the Chargers on Sunday. Earlier this week Gronkowski and some teammates drove up to Los Angeles and hung out with Justin Bieber in the Clippers' locker room.

During practice Wednesday, Belichick had his players wear jerseys concealing their numbers. Here's what Tom Brady looked like:

Here's running back LeGarrette Blount (below, left):

And here is Gronkowski coming out to practice:

Here's a video of Gronkowski being cheered on by the adoring college students at University of San Diego, where the Patriots are practicing.

Gronkowski, who has been known to have the sense of humor of a 16-year-old boy, apparently took the tape off before practice. Something tells us Belichick would not have found this super funny.

After missing much of the past two seasons with injury, Gronkowski is having another stellar year. He's caught 65 passes for 910 yards and nine touchdowns.

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