Friendly wagers are one of the best parts of sports. They're even more fun when they involve two very good boys.

Thor, a black lab therapy dog from Cardinal Glennon Children's Hospital in St. Louis, Missouri, challenged Tabby, a German Shepherd therapy dog at Children's National Hospital in Washington, D.C., to a friendly bet on the Nats-Cardinals NLCS best of seven series. The bet was settled not too long after it began.

Since the Nationals swept the Cardinals, Thor had to wear a Nationals' bandana to work, courtesy of Tabby.

Thanks for being a great sport, Thor @cardinalglennon! We had fun with our #therapydog pet wager. Hopefully you & the @Cardinals will get your #Natitude ready for next week ⚾️❤️ pic.twitter.com/rNeZMNBbCI — Children's National Hospital 🏥 (@ChildrensNatl) October 18, 2019

Thor does not look very amused, but at least he was a very good sport.

Hopefully, Thor will decide to cheer on the Nationals in their first-ever World Series against the Astros!

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