Well, there's no denying that model Kate Upton has her fiance's back.

In a very X-rated tweet, Upton let the MLB know how she felt after Detroit Tigers pitcher, Justin Verlsander, lost the Cy Young Award.

Hey I thought I was the only person allowed to f--- ?! What 2 writers didn't have him on their ballot?

The Cy Young Award is given to the best pitchers in Major League Baseball, one for the American and one for the National League. It's voted on by the Baseball Writers' Association of America.

Former Tigers pitcher (now Red Sox), Rick Porcello, took first place and Verlander finished in second even though he had more first-place votes.

So went wrong?

Two writers completely left out Verlander from their ballots, which ended up giving Porcello more overall points DESPITE Verlander having more first place votes.

Kate was not having any of that nonsense. #ByeFelicia