Doyle has posted a 1.82 ERA and 51:22 K:BB over 39.2 innings covering his last eight starts with Double-A Springfield.
Doyle logged nine strikeouts -- including six in a row at one point -- over five innings of one-run ball in his last outing Wednesday. Walks have been an issue throughout the season for Doyle, but the control has been better over his last four starts as evidenced by a 10.0 percent walk rate. Doyle looks ready to be challenged at Triple-A Memphis, though it's unclear if there are plans to promote the first-round draft pick.