Joe Theismann showed off his guns with boxer Shannon Riggs

Friday August 7th, 2015

Joe Theismann may be 65 but the former quarterback is still willing to show off his physique, as seen when he recently hit the gym with heavyweight boxer Shannon (The Cannon) Briggs.

The always excitable Briggs is pretty hyped up to have Theismann in the ring with him, getting the ex-Redskin to flex for the camera as he tells the world that The Cannon will be the next heavyweight champion.

After the workout, Theismann jokingly wondered on Twitter if he may have intimidated Briggs in the ring.

Watch: Best athlete interviews on The Daily Show

SI Apps
We've Got Apps Too
Get expert analysis, unrivaled access, and the award-winning storytelling only SI can provide — from Peter King, Tom Verducci, Lee Jenkins, Grant Wahl, Andy Staples and more — delivered straight to you, along with up-to-the-minute news and live scores.