Seeing former big leaguers Mark DeRosa and Sean Casey on TV is nothing new, given their ongoing studio roles with MLB Network. But seeing them yuk it up on a late-night talk show is a bit of a different experience -- both for them and for viewers.

Following MLB Network's most-watched regular season in seven years, DeRosa and Casey will be guests on Friday's episode of "Late Night with Seth Meyers" to promote the MLB postseason, discuss their careers and to otherwise have a few laughs with Meyers, who's a big baseball fan.

“Sean is a live wire unlike any guest we’ve ever had,” Meyers told MLB.com. “My thoughts and prayers are with Mark for having to work with him every day.”

The segment was taped on Wednesday, the latest in a long-time collaboration between the show and MLB Network. But

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