The Phillies selected Kerkering from Triple-A Lehigh Valley on Friday, Matt Gelb of The Athletic reports.
Kerkering began the season with Single-A Clearwater, but he remained dominant as he advanced through the Phillies' farm system. The 22-year-old righty holds a 1.51 ERA and 0.89 WHIP alongside a 79:12 K:BB through 53.2 total innings in the minors, and he will likely serve in middle relief during his first trial run in the big leagues.