A streaker ran onto the field before the seventh inning of a Cardinals-Phillies game at Busch Stadium in St. Louis.
Later identified as 22-year-old Collin Grundstrom of Jefferson City, Mo., the streaker jumped onto the field, removed his clothes and ran around naked, much to the delight of fans who cheered him on.
Security chased Grundstrom around the field until they were finally able to pin him to the ground.
Police officers forced him to put on a pair of shorts before getting up.
"Somebody yelled about a naked guy on the field. That's the last thing I'm expecting to see, a naked guy running across the field," said Cardinals outfielder Adron Chambers.
One fan wasn't too bothered, saying that a streaker was "better than a no-hitter," The Huffington Post reported.
Cardinals third baseman David Freese didn't think that Grundstrom had any sinister plans in mind.
"He's naked so I don't think he's carrying much. That relaxes that bit of the drama. I guess naked is better. Less to worry about," Freese told B.J. Rains at FOX Sports Midwest.
Grundstrom practiced as he preached. A tattoo on his rib cage read, "Hakuna Matata."
In case you're interested in the game, the Phillies beat the Cardinals 10-9.