The Nittany Lions erased a four-point deficit in the final three minutes of the game.
Gesicki’s deal is worth $25.5 million, per Adam Schefter.
Wiebusch went through the legs to upset Michigan Friday night.
JJ Wiebusch completed a hat trick in the win.
The Nittany Lions opened Big Ten play with a high-scoring split doubleheader.
"We know what's going to be coming at us and that's what's making this trip, for me, very interesting."