THE PEANUTS- the Sore Arm episode. video, a word I can't understand

[cip]

Hi everybody out there
I can't understand the word after: "This is only the first game of the season! you are *** already?"(minute 0.58)
of this video
https://www.youtube.com/watch?v=2MUke4Hk6cA
I'm not a native, obviously
thanks a lot

 

[Grumpy]

It's "Your arm can't hurt already!"

 

[cip]

so simple and I was breaking my head over it
THANKS!