Shirtless Cardinals fans take over empty section in electric scene during walk-off win over the Royals

You never know what you are going to see at the ballpark.

During the ninth inning of the St. Louis Cardinals' 5-4 win over the Kansas City Royals on Friday night at Busch Stadium, fans started migrating to an empty section in right field and took their shirts off.

The game was tied 3-3 in the bottom of the ninth inning when the group of fans made their way to the empty section. About 100 fans first started the movement, and as the game went to extra innings, the entire section was packed with shirtless fans, according to the St.