October 8, 2014 12:17 PM EDT

The San Francisco Giants may have defeated the Washington Nationals, advancing to the National League Championship Series against the St. Louis Cardinals, but a veteran’s unique ceremonial first pitch in Game 2 of the National League Division Series may one of the most memorable moments of the series.

During the Oct. 4 game at Nationals Park, retired Army sergeant Brian Keaton crawled on his belly up the side of the mound and then threw the baseball as if he was tossing a grenade. This MLB video has racked up more than 1.1 million views so far. Action starts around the 1:05 mark.

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Write to Olivia B. Waxman at olivia.waxman@time.com.

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