Lincecum Jokes With Umpires Before Heritage Game

What will Timmy do next?

Before Saturday night's Heritage Game between the Giants and Braves, Tim Lincecum decided to mess around with the umpiring crew. Timmy donned a pair of glasses and, along with his 'stache and a fake paunch, really got in the spirit of the throwback game.

We know Timmy's never shy about lightening the mood around the ballpark.