I'm afraid you'll have an unintended association with this.
"Up yours!" is a fairly common, albeit vulgar, way to express your disapproval/dislike for someone. "Shove it up your ... [rude word]" is the version that leaves nothing to the imagination.
A more humorous version from the 70s was "Up your nose with a rubber hose."
However, if I read "Up your team" I'd be thinking "Up my team's WHAT?" What are you shoving up someone's... uh... are you understanding what I'm trying to say?
You need to find another word than "Up" if you want this to work for American audiences.
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