A look at what's happening all around the major leagues today:
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YOUNG AND YOUNGER
Yankees prized prospect Luis Severino makes his big league debut, facing the Red Sox in the Bronx. At 21, he will become the youngest pitcher to start in the majors this season. The righty began the year in Double-A, then went 7-0 with a 1.91 ERA in Triple-A. The AL East leaders need depth in the rotation after learning Michael Pineda is out at least until September with a strained right forearm.
TRY AGAIN
Johnny Cueto aims for his first win with the Royals when he starts at Detroit.