Austin Box's parents, Craig and Gail Box, attended Saturday night's game against Texas Tech, their first game of the season.
Austin Box, who would've been a senior this year, died in May.
His parents watched from the sidelines and spent time with Sooners coaches, including defensive coordinator Brent Venables, before the game.
“Today will be my parent's first game to go to, please pray for their strength as they cross this bridge, it won't be an easy day,” Whitney Box, Austin's sister, tweeted earlier in the day.
Craig and Gail Box declined to comment.
Junior defensive end Ronnell Lewis wore Box's No. 12 for the game.
RAIN SLOWS START
It wasn't a delay on the level of Oklahoma State's game against Tulsa that started after midnight earlier this season, but Saturday's game was delayed more than an hour and a half by lightning and heavy rain that moved through the area.
The game was delayed in three increments of 30 minutes before beginning at 8:46, 1:34 after the scheduled start.
It was the third weather delay for OU during the Bob Stoops era.
There was a 1:12 delay on Aug. 30, 2008 against Tennessee-Chattanooga at the start of the second half. The other was in 2002 against UTEP, a 51-minute delay.
BROYLES HONORED WITH VIDEO TRIBUTE
Sooners wide receiver Ryan Broyles was honored with a long pregame video that showed every pre-Tech reception of Broyles career.
It was the first home game since Broyles broke the NCAA record for career interceptions.
The video lasted nearly 15 minutes and ended with “This is Oklahoma football ... This is history” on the video board, then showed Broyles warming up.
Broyles briefly turned and watched the video for a few moments before resuming pregame warmups.