Luis Castillo to Piggyback Behind Bryce Miller on Friday

Luis Castillo is set to contribute to the Mariners' pitching effort on Friday against the Red Sox. He will serve in a piggyback role, following starter Bryce Miller in the game. This strategic usage allows Castillo to provide length out of the bullpen or as a secondary arm in the rotation plan. His performance will be a key factor in the team's pitching strategy for the matchup.