Mets legend Keith Hernandez says he still gets 'close to $5,000' per year in 'Seinfeld' residuals

If Keith Hernandez ever decides to stop calling New York Mets games, he will always have another source of income.

The team's legendary former first baseman became a broadcaster for the team in 1999 and is a multi-time local Emmy winner for his skills on the mic. But after he hung up the cleats, he tested out his acting skills.

Hernandez was one of numerous New York baseball stars to appear on "Seinfeld," playing himself in three episodes. His most famous appearance, though, came in the two-part episode...