"For them to welcome me means very much to me," Brady said, via Kyodo News. "It's hard to describe in words how special that was."
And here's the moving-pictures evidence.
Brady stepped into the dohyo ring with Goeido, the 31-year-old winner of the Autumn Grand Sumo Tournament.
"[Brady] has a lot of explosive power," Goeido said. "I feel energized. It's stimulating to have an opportunity to come in contact with athletes from a different sport."
No word on if Brady will add sumo training to his offseason workouts. The 39-year-old quarterback, who is known for his strict dietary habits, not only remains one of the league's best players but says he wants to play for another four or five years.
"I'd like to play until my mid-40s," Brady told TheMMQB.com's Peter King earlier this offseason. "Then I'll make a decision. If I'm still feeling like I'm feeling today, who knows? Now, those things can always change. You do need long-term goals too. I know next year is not going to be my last year."