The Red Sox optioned Kelly to Triple-A Worcester on Saturday, Julian McWilliams of The Boston Globe reports.
Kelly will serve as the Red Sox's opening pitcher for Monday's game against the Blue Jays, Mac Cerullo of the Boston Herald reports.
Kelly allowed two runs (one earned) on one hit while striking out three over two innings in Monday's 9-8 extra-innings loss to Colorado.
Kelly will serve as the Red Sox opener for Sunday's game against Cincinnati, Christopher Smith of MassLive.com reports.
Kelly struck out two over a scoreless inning and stranded three runners in Sunday's 9-3 win over the Yankees.
Kelly struck out three over two hitless and scoreless innings in Friday's 8-1 loss to the Yankees.
Kelly is scheduled to start Sunday's game against the White Sox in what's expected to be a bullpen day.
The Red Sox recalled Kelly from Triple-A Worcester on Wednesday.
The Red Sox called up Kelly from Triple-A Worcester on Tuesday, Chris Cotillo of The Springfield Republican reports.
The Red Sox optioned Kelly to Triple-A Worcester on Sunday, Mac Cerullo of the Boston Herald reports.