Brady, doing a video interview on CNBC's Squawk Box, talked about how he can get emotional during games but the key is to have respect for teammates, your team and other players.
He's not sure the newest TIME magazine cover boy understands that.
"He's probably been the best athlete in his high school class, in his elementary school class," Brady said. "So when you look across the ball, you have respect for those guys and treat them with respect because football's a physical game... and as RKK (team owner Robert Kraft) would say, 'If you're a turd, it's going to come back to you.'"
Manziel, who played in just the second half of the game because of an inadvertent NCAA violation, made an autograph motion to a Rice defender after a tackle in the third quarter. After a touchdown pass in the fourth quarter, Manziel was hit with an unsportsmanlike penalty and benched for the final A&M offensive possession.