Asher will start Tuesday against the Red Sox, Roch Kubatko of MASN Sports reports.
Jayson Aquino had been scheduled to start Tuesday, but after being used in Saturday's game the need for a different starter arose. Asher started a game against the Blue Jays earlier in the season. It was a solid outing and he gave up just a single run over 6.1 innings. However, since then, he's been used as a reliever and pitched just two innings across two games.