The Dolphins (2-7) posted their second consecutive victory after losing 10 straight dating back to last season and logged their first win at Sun Life Stadium since Nov. 14, 2010, against Tennessee.
The reeling Redskins (3-6), meanwhile, dropped a fifth straight game for the first time in more than 10 years.
He was held to 215 yards and was intercepted twice in the setback.
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