Boyle replaced Skylar Thompson (rib) with 9:25 remaining in the third quarter of Sunday's 24-3 loss to the Seahawks and completed seven of 13 passes for 79 yards while adding one rush for six yards.
Boyle signed with the Dolphins' practice squad Aug. 29 after failing to make the Texans' 53-man roster at the conclusion of training camp. He'll join Miami's active roster and is expected to serve as ...