Williams and Rowling are the fifth and sixth players to enter the transfer portal.
Paxton Kling, Jack Porter, and Cole Wagner all earned Big Ten accolades.
"I hope I inspired people to follow their dreams, be consistent, and to know that if someone says no to you, it doesn't
matter."
First pitch for game one of the doubleheader is set for 1:32 p.m. on Monday, April 21.
The game has been moved to 5 p.m. on Wednesday.
The game originally scheduled for Tuesday, April 8, will not be made up.