The Houston Astros pitcher was being honored at NRG Stadium in Houston for winning the 2019 AL Cy Young Award ... his 2nd Cy Young ... and they picked the right game to attend!
Deshaun Watson threw for nearly 300 yards and 2 TDs as the Texans escaped with a 20-to-17 win over the Indianapolis Colts.
Kate and Justin not only got field access before the game to rub shoulders with stars like Watt, Watson and others ... but they later got to chill in a VIP suite!
There was even a moment where the Texans put Kate and Justin on the Jumbotron -- and Kate shot herself being shot ... and put it on IG!
After the game, the couple got to go back in the locker room where Watson hooked 'em up with a signed jersey (it looks game worn, but we're told it's not. Still cool though!).
Next up for the Texans ... they take on the New England Patriots on Dec. 1 -- maybe they should invite Kate and Justin back for good luck?!