It was an excellent year for Los Angeles Rams star wide receiver Cooper Kupp. Not only did Kupp win the NFL's Offensive Player of the Year award while flirting with the single season receiving yardage record, but he also won a Super Bowl. Anyone would be happy with that kind of year. However, Kupp also made a big financial decision this NFL offseason. The Rams star decided to sell his California mansion for $5.25 million. Check out the massive home, per TMZ Sports.