Running back Adrian Peterson, who learned Friday afternoon that his NFL suspension was upheld by a third-party arbitrator, told ESPN that he has been so disappointed by the league’s disciplinary process that he has considered retirement during his time away from the Vikings.

“I’ve thought about getting back into the real estate business in Texas I’m already in,” Peterson said. “That’s something I’ve been interested in, something I’m involved in. I’ve thought about getting back into that.

“I’ve thought about going after the Olympics - you only live once. It might be time for me to pursue that, as well. I love playing football, don’t get me wrong, but this situation is deeper than that. For me, it’s like, ‘Why should I continue to be a part of an organization or a business that handles players the way they do?’”

Peterson is interested in competing in the 200-meter dash and the 400-meter dash in the Olympics.