After a short exchange from the mound to home plate, which Pevey then proceeded to kick dirt on, Pevey left the field and the dugout.
Iowa's Steve Clevenger, who is with the team on a rehab assignment, was also ejected. He was not in the game at the time.
GROSSMAN PICKED OFF
After Robbie Grossman hit a double into center field to start off the RedHawks' hitting, he was then picked off at second base by Negrin.
Brett Wallace and Brandon Laird would then single on back-to-back plays after Jose Martinez grounded out. A run by Grossman in the bottom of the first could have made a difference at the end of the game.
HOME SWEET HOME
The RedHawks are now 2-4 in their last week, but hope to turn their fortunes around in their next seven straight games at home.
They are 17-10 at Chickasaw Bricktown Ballpark, and are now a game back behind the Round Rock Express, who they will play a four-game home series against starting Friday.
The RedHawks face the Cubs again at 11 a.m. Tuesday at Chickasaw Bricktown Ballpark. Asher Wojciechowski (2-2, 3.23 ERA) is scheduled to start for OKC, while Guillermo Moscoso (2-3, 4.75) is expected to pitch for Iowa.