De Leon took a no-decision after allowing six runs (four earned) on seven hits and two walks, while striking out two, in 3.2 innings during Sunday's 10-9 loss to the Diamondbacks.
De Leon struggled in his third career start, allowing three runs in the second inning and three more in the fourth before departing. Luckily for him, his offense bailed him out, rallying to force extra innings and preventing him from taking the loss. The 24-year-old rookie pitched well in his two previous outings, winning both while allowing five runs on eight hits and striking out 12 in 11 innings. De Leon will look to bounce back at home against the Rockies on Friday.