Minnesota Vikings running back Adrian Peterson underwent surgery on Thursday for a lateral meniscus tear in his right knee, and the team issued a statement saying that there "were no additional injuries or issues noted in or surrounding the knee joint during the surgical procedure."
The Vikings said that Peterson's rehabilitation process will begin immediately.
On Wednesday, a source told ESPN that Peterson also had a torn lateral collateral ligament. The Vikings had denied that, and Peterson texted ESPN's Josina Anderson saying, "no torn LCL."