Minnesota Vikings running back Adrian Peterson has pledged a $1 million donation to the Oklahoma University athletics department on Thursday.

Peterson, a former All-American running back with the Sooners, will be donating the largest amount of money ever given to the school's athletics department from a former football player, according to OU athletic's website.

“It was something that I always wanted to do and there just came a time when I got established and comfortable enough to make it happen,” Peterson told the university.

In return, the school is naming the team's football meeting room: “The Adrian Peterson Team Meeting Room,” according to the website.

Peterson played for OU from 2004 to 2006 and currently ranks third in all-time rushing yards at the program. He went to the Minnesota Vikings who had the seventh pick in the 2007 NFL draft. 

Peterson is currently still rehabbing from reconstructive knee surgery after he tore his ACL on Dec. 24 in Washington. His MCL needed repairing as well.