LEADING OFF: Rookies Weathers, Widener meet, deGrom vs Bosox

In a matchup of promising rookies, Padres lefty Ryan Weathers starts against Arizona righty Taylor Widener in Phoenix. The 21-year-old Weathers is 1-0 with an 0.59 ERA in five games, two of them starts, this season. He made his major league debut last year for San Diego in the NL Division Series, pitching once against the Dodgers. The 26-year-old Widener is 1-0 with a 2.82 ERA in four starts this season. He debuted last year with 12 games in relief for the Diamondbacks.