RIPPED IN THE RING
Russell Wilson may be Mr. Unliiiiimited or DangeRuss, but he really should go by Muscle Wilson from now on ... 'cause the Pittsburgh Steelers quarterback showed off his swole bod in a recent boxing session!!
The 35-year-old veteran -- who signed a one-year deal with the Stillers in March -- shared a snippet of himself in the ring on Tuesday ... and you can't help but notice Russ' physique (especially his biceps) as he hit the mitts.
Fans were impressed with the 9-time Pro Bowler's performance .