Robert Griffin III has already broken the single-season jersey sales record. (Al Bello/Getty Images)
Washington Redskins fans are investing a lot in rookie quarterback Robert Griffin III. They're also investing a lot in his jerseys.
ESPN.com's Darren Rovell reported Monday that Griffin's No. 10 jersey has already sold more than any other player's in a single season since the NFL began keeping track six years ago. The NFL did not reveal specific sales numbers, but the record provides a barometer of how popular Griffin has become in his first season.
Griffin broke a record previously held by Brett Favre, who led the league with the New York Jets in 2008 and Minnesota Vikings in 2009.
And Griffin still has more than three months to pad his record. The NFL's fiscal year technically runs through March 31, so Griffin should eclipse the record by a wide margin.
The Redskins are hoping to get Griffin back in uniform this week as they head into the final two games of their season atop the NFC East. Griffin is fighting his way back from a sprained lateral collateral ligament his right knee. Coach Mike Shanahan said Monday that he will wait for an OK from doctors before he decides whether Griffin can play this week.