Walker Buehler MLB Authenticated game used strikeout ball

All

I have Walker Buehler’s 5th career strikeout ball and I’m going to get autographed and I paid to get 3 words on the ball. Do you have any suggestions on what to write? I’m thinking “career strikeout #5”. Do you think that sounds good? Or “career K #5”?

thanks in advance

What about what you wrote in first sentence
5th career strikeout

http://gameuseduniverse.com/blob:htt...8-e823d6f79eab

http://gameuseduniverse.com/blob:htt...8-e823d6f79eab