Tommy La Stella dove head-first into the stands to catch a foul ball, stunning Joey Votto

Thanks to the likes of Javier Báez, highlight-reel defense from the Cubs' infield is nothing new. On Saturday afternoon, however, skipper Joe Maddon decided to give both him and Kris Bryant the day off against the Reds, tabbing Tommy La Stella for the start at third base.
Given the expertise of the Cubs' infield, La Stella doesn't receive too many chances to crack the starting lineup. In fact, he has received the start in only 14 of the Cubs' first 73 games. Fate sometimes has a way of finding the substitutes to test them early, and sure enough, that challenge came in the first inning.
Joey Votto lifted a high popup in foul territory. La Stella tracked the ball to the stands along the third-base line and was running out of room. So, he dove right in, head-first ...

... and came up with the ball on an incredible catch. Even the stunned Votto had to be impressed, albeit disappointed:

As the Cubs' announcers said, that play was Baez-like. What a way for La Stella to make the most of his opportunity.