ASHBURN, Va. (AP) Redskins coach Jay Gruden will decide whether Robert Griffin III or Colt McCoy is the backup quarterback for Week 1 after Griffin visits a neurologist ''early this week.''

The Redskins open the regular season at home against Miami on Sunday.

Griffin missed Washington's final two preseason games after sustaining a concussion against Detroit on Aug. 20.

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He was originally cleared to return two days before the Redskins' Aug. 29 game against Baltimore, before a team neurologist reversed his decision.

Kirk Cousins was selected as the starter following a strong performance in that game, and McCoy played the entire final preseason game last Thursday against Jacksonville.

Griffin, the 2012 Offensive Rookie of the Year, was selected as the starter in February. In two preseason games, he completed 6 of 13 passes, was sacked three times and lost a fumble.

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