Deshaun Watson KO'd a fan's College GameDay sign with one simple response

Clemson takes on Louisville Saturday night.

A fan tried to jab at former Clemson star Deshaun Watson during College GameDay Saturday morning before defending Heisman trophy winner Lamar Jackson and Louisville take on the Tigers.

Watson didn't need to say a word, but instead tweeted one simple picture to land the knockout blow.

Watson's alma mater Clemson plays Louisville Saturday night at 8 p.m. ET.