Of course, this wasn't Sister Jean's first time on the mound ... she's a pro! Last year she tossed the first pitch to celebrate her 103rd birthday!
This year's celebration isn't over just yet ... Loyola is hosting a block party on Thursday in her honor.
Courtesy of MLB
Sister Jean is known to be the life of the party ... first rising to fame nationally as the Loyola Ramblers went on an NCAA tourney run, making it to the Final Four, and Jean was their good luck charm.
In fact, Sister Jean was so popular, her bobblehead sold for over $300 on eBay.