Credit: John Paul Filo/CBS via Getty Images; Quinn Rooney/Getty Images

David Letterman -- who made headlines earlier this year after cheating on his wife with his assistant -- poked fun at Tiger Woods' infidelity on his Late Show Monday, his first new show after a week of repeats.

Letterman, 62, joked that he wished the golfer, 33, would stop calling him to ask for advice.

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"Boy, it looks like that Tiger Woods is having some trouble, huh?" said Letterman as he puffed his cheeks out.

Letterman joked that if Woods' situation had happened three months ago, he'd "have material for a year."

"President Obama is sending troops to Afghanistan," Letterman said. "Hell, he ought to be sending them to Tiger Woods' house."

His Top Ten centered around "ways Tiger Woods can improve his image. (Cracked Letterman, "Maybe I can learn a little something myself.")

The No. 1 way Tiger can improve his image? "Blame Letterman," the host said.