Griffin has been following a strict training schedule under the instruction of coach Mike Shanahan having torn multiple knee ligaments at the end of last season.
The 23-year-old publicly criticised his recovery plan, raising questions over his relationship with Shanahan ahead of the new season.
However, both parties have refuted claims of any rift between the pair and Shanahan has always insisted that his training schedule was designed to get Griffin ready for the new season, despite his pleas to be involved in the warm-up matches.
The plan appears to have worked as Griffin is set to start the match against the Philadelphia Eagles on September 9 having come through the past two weeks without a setback.
The reigning NFL Offensive Rookie of the Year is due for a final check-up before the Redskins' final pre-season match on Thursday, but it is believed that he will be passed fit for the first game of the regular season.