It's a bowling date. Very first ball. When the clerk asked my name I said Mr. Balls and it's on the scoreboard above me. All the pressure in the world is on my shoulders like Atlas. I turn to face my date, announce that "This is why they call me Mr. Balls", and throw it down the lane. The stars align and I get my only strike of the night.
That is why they call me Mr. Balls.
I pitched nothing but balls and everyone was very disappointed.
My date even said "Maybe you're just not cut out to be a pitcher".
There's your problem. You tried to be Mr. Balls in a game where "ball" means a bad thing. You pitched nothing but balls which proves that it's a mystical power.
Mr. Balls could be a good thing if you were a super hitter that got walked all the time
but half of those players would probably think you were talking about their roid-shriveled testicles