Outfielder Darius Hill was demoted from Triple-A Iowa to Double-A Knoxville.
The Cubs released right-hander Trevor Richards.
Iowa Cubs
The Iowa Cubs corralled the Buffalo Bison (Blue Jays), 10-2.
Connor Noland started and got the win, allowing just one run on four hits over five innings. Noland walked three and struck out two.
Luke Little pitched two scoreless innings of relief. He gave up one run, walked no one and struck out one.
Shortstop Ben Cowles had a four RBI day with an RBI double in the third inning and a three-run home run in the sixth.