Robert Griffin III's father says RG3's rehab is going "extremely well"

Robert Griffin III's rehab is going well, according to his father. (Photo by Patrick McDermott/Getty Images) Robert Griffin III's father, Robert Griffin II,

Robert Griffin III's rehab is going well, according to his father. (Photo by Patrick McDermott/Getty Images)

Robert Griffin III's father, Robert Griffin II, said his son has been throwing footballs prior to the draft and that his rehabilitation is going "extremely well," USA Today's Jim Corbett reported on Friday. Griffin III hopes to be ready in time for the Washington Redskins' season opener against the Philadelphia Eagles on September 9.

Griffin III, the 2012 Offensive Rookie of the Year, had surgery on January 9 to repair torn anterior cruciate and lateral collateral ligaments in his right knee. Dr. James Andrews, the orthopedist who performed surgery on Griffin III's knee, said Griffin III's recovery has been nothing short of "unbelievable" and "superhuman."