It's Brady vs. Brady!
Tom Brady and his eldest son, John, went up against each other in a sumo wrestling match in Tokyo, Japan, on Wednesday.
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The New England Patriots quarterback shared a pic of himself and his 9-year-old son -- whom he shares with ex Bridget Moynahan -- getting ready for battle.
"Brady vs Brady #therecanonlybeone ?," the Super Bowl champ captioned the Instagram photo.
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The NFL star also went up against a professional sumo wrestler, but it looks like this was one match he couldn't win.
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Brady is traveling with Under Armour on a promotional tour through Asia and took his son along for the trip. The 39-year-old athlete has shared a handful of snapshots from his excursion, which also included a visit to the Great Wall of China.
For more on Brady and his adorable family, watch below.