The All-Star Game roster shuffled Tuesday as Willson Contreras, Braxton Ashcraft, Jesus Luzardo, and Riley O'Brien received call-ups for the July 14 showcase in Philadelphia. Contreras joins the American League squad replacing Vladimir Guerrero Jr., with A's first baseman Nick Kurtz drawing the start instead. The Red Sox slugger learned the news via a call from Craig Breslow while awaiting word on his appeal of a seven-game suspension stemming from last week's brawl with Washington.

The National League added three first-time All-Stars after Jacob Misiorowski, Max Meyer, and Paul Skenes withdrew — each started Tuesday and lines up for Sunday turns with their clubs. Ashcraft, 26, owns a 9-3 record and 3.24 ERA for Pittsburgh. Luzardo, 28, has fanned 125 batters across 103.1 innings with a 3.75 ERA for Philadelphia. O'Brien, 31, has converted 22 saves and posted a 3.72 ERA as St. Louis' closer.

Contreras arrives despite the disciplinary cloud, carrying a .921 OPS into Tuesday's game against Chicago. He torched the Angels over the weekend with four hits, including two home runs, in a sweep. The 34-year-old will share the field with brother William, a National League selection for the third time, marking Willson's fourth Midsummer Classic appearance.

The replacements underscore how pitching schedules dictate All-Star availability more than performance. Boston gains a showcase for Contreras amid uncertainty, while Pittsburgh, Philadelphia, and St. Louis earn recognition for arms keeping their clubs in contention.