Ronda Rousey Knocked Out in 48 Seconds

Ronda Rousey is knocked out 48 seconds into her UFC comeback. The UFC 207 fight took place Friday, Dec. 30 at the MGM Grand in Las Vegas. According to US Weekly, her opponent Amanda Nunes bragged about Rousey's quick defeat on social media. Rousey was returning to the ring after her shocking loss to Holly Holm last November.