The Reds traded Boyle to the Athletics on Monday in exchange for Sam Moll, Jeff Passan of ESPN.com reports.
Boyle has struggled since reaching Double-A in 2022, logging a 4.58 ERA and 1.67 WHIP across 110 innings. He strikes out batters at an above-average rate, but his inability to limit walks and runs suggest he still has a long way to go before reaching the big-leagues.