Overview
- The NL West rivals began a two-game set in Mexico City on Saturday, with Arizona batting last as the designated home team and a 6:05 p.m. ET first pitch on MLB Network.
- Zac Gallen opposed Germán Márquez in the opener, with Ryne Nelson set to face Michael King on Sunday at 4:05 p.m. ET on Dbacks.tv and Padres.tv.
- Umpires will call balls and strikes without the new challenge system because Estadio Alfredo Harp Helú lacks the technology required for MLB’s automated zone.
- The 7,350‑foot elevation has produced heavy offense in prior Mexico City games, where hitters combined for a .302/.375/.601 line and pitchers posted a 7.98 ERA.
- MLB reported sellout crowds and expanded local promotions as part of its push to grow in Mexico, and Diamondbacks CEO Derrick Hall said the trip targets building the club’s fan base.