After a slick arm-bounce move, she threw out the first pitch and delivered a strike to Sox pitcher Lucas Giolito.
"That was awesome," Giolito said after the game. "She had a whole routine. She had it planned out. I was just lucky to be back there. She threw a perfect pitch."
RELATED: Nun uses chainsaw to cleanup after Irma
"She was pretty good, actually," White Sox manager Rick Renteria said. "We talked to her a little bit but before we were talking to her, she was talking to someone and she wanted to warm up. She had a mitt and a ball. She gave him the mitt. She stepped back at about 45 feet and threw a bullet."
Good job Sister Mary Jo!
Go to this page for more stories on baseball.