Zac Gallen struggles as Diamondbacks starter gives up hits at alarming rate

Zac Gallen, the Arizona Diamondbacks' frontline starter, has a 5.35 ERA over 15 starts this season. Gallen’s performance has declined significantly, allowing an average of 11.1 hits per nine innings, a sharp increase from his previous average of 7.5. After a shoulder injury in April, his command and effectiveness have diminished. Gallen's struggles come as the Diamondbacks compete in a challenging division alongside the Los Angeles Dodgers and San Diego Padres. With his contract expiring after this season, his future prospects are uncertain unless his form improves.

• 10:37 PMYahoo Sports — Diamondbacks' frontline starter is giving up hits at an alarming rate