De Leon gave up four runs over 4.2 innings against the Brewers on Saturday, allowing three hits (including a homer to Omar Narvaez) and three walks while striking out three.
De Leon, who is battling for the fifth-starter job for the Reds and might be out of options, pending an arbitrator's decision, now has a 6.39 ERA over 12.2 innings this spring, albeit with 17 strikeouts.