Patterson hasn't competed since suffering a knee injury on Jan. 19, DeAngelis is questionable for Sunday, and Chaid (184 pounds) is expected to be out again after appendix surgery last week.
“They're all three banged up, and they're banged up pretty good,” said OU coach Mark Cody. “We were concerned going into a conference dual (at West Virginia) with those three out and that could be the case tomorrow.”
The OU injuries could prevent a rematch of the top two wrestlers at 174 pounds. The Sooners' top-ranked Andrew Howe has been sliding up to 184 pounds with Chaid out. If OU employs the same strategy on Sunday, it means Howe won't see OSU's second-ranked Chris Perry. Howe defeated Perry, 4-2, earlier this season in Norman.
Despite the injuries, the Sooners still have enough firepower in the lineup to give them a chance at sweeping the Cowboys on Sunday. Maple (No. 2 at 149 pounds) appears to have found his national champion form from a year ago while Howe, Travis Rutt (No. 4 at 197 pounds), and Cody Brewer (No. 7 at 133 pounds) have been consistently impressive all season.
“It's tough to compete at this level with anyone out of your lineup,” Cody said. “It's amazing the difference even just one guy can make. But when you still have four or five guys in the lineup that are always competing at a high level sometimes it can make up for it.”