Diamondbacks' Zac Gallen Placed on 15-Day IL with Hamstring Strain

Arizona's rotation faces challenges as key pitchers remain sidelined amid a rough start to the season.

Zac Gallen exits after six pitches against the Mets, diagnosed with a right hamstring strain.
Gallen joins Merrill Kelly and Eduardo Rodriguez on the injured list, compounding Arizona's pitching woes.
The team has recalled right-hander Slade Cecconi from Triple-A Reno to fill the gap.
Gallen's injury further strains a rotation struggling with high ERAs from replacement pitchers.
Arizona, defending NL champions, are currently six games under .500, making playoff contention difficult.