OAN is a controversial far-right news channel in the U.S.
Hubbard is the reigning Big 12 Offensive Player of the Year after rushing for an NCAA-high 2,094 yards and 21 touchdowns in 2019.
The running back quickly garnered support from linebacker Amen Ogbongbemiga, one of Oklahoma State's best defensive players:
Oklahoma State president Burns Hargis responded Monday on Twitter. However, he didn't specify whether or how the school would react.
In April, Gundy talked to reporters about OAN for 20 minutes, calling the news network "refreshing" compared to mainstream outlets.
"They just report the news," said Gundy, according to Pete Thamel of Yahoo Sports. "There's no commentary. There's no opinions. There's no left. There's no right."
Gundy also courted controversy earlier in the offseason due to COVID-related comments. The head coach was forced to apologize in April after saying he hoped to have his players back on campus by May 1, a proposed timetable that would've defied the federal social-distancing guidelines at the time.