Seattle Seahawks safety Earl Thomas has revealed that he was drug tested by the NFL after claiming that he had fully recovered from his shoulder injury.

The 25-year-old reportedly sustained a dislocated shoulder in his side's NFC championship win over the Green Bay Packers, but has made a complete recovery in time for the Super Bowl.

However, Thomas has admitted that the speed of his recovery aroused suspicion from the league, who tested him for human growth hormone (HGH).

Thomas and his teammates face off against the New England Patriots in the Super Bowl in Glendale on Sunday.