Arroyo struggles in MLB debut after strong Triple-A start

Edwin Arroyo got the call because Cincinnati needed a shortstop, and the first week of his MLB career quickly showed how little margin there is when that opening comes before a player is fully settled.

The Reds promoted the 21-year-old infielder after Elly De La Cruz went on the 10-day injured list with a right hamstring strain, a move that opened a lane at shortstop and second base. Arroyo, who was awakened Monday morning by Louisville manager Pat Kelly with the news he was headed to the big leagues, made his MLB debut on June 1, 2026, as the Reds turned to their No. 3 prospect and MLB Pipeline’s No. 98 overall prospect to help cover the gap.

That decision came after a sharp Triple-A run and then a stumble. Arroyo was batting .323 with an .383 on-base percentage, .945 OPS, 11 home runs, 34 RBIs and nine stolen bases in 53 games for Louisville, and earlier in May he had one of the hottest stretches in the International League, including a four-hit, four-RBI game on May 7, another four-hit, three-RBI game on May 9 and a three-run homer on May 21. But he also closed his Louisville stint 5-for-30 over his final seven games, a skid that left him 1-for-7 with five strikeouts in his first MLB week and struck out 11 times in his last 16 at-bats.

For Cincinnati, the timing mattered as much as the performance. Arroyo had missed all of 2024 after a torn labrum in his left shoulder, then rebuilt his stock with 120 games at Double-A Chattanooga in 2025, where he hit .284 with a .716 OPS and three homers. He entered the majors as a switch-hitter with enough contact skill to project as a fit at multiple infield spots, but MLB scouting notes also warned that he could chase too much and struggle against softer stuff. That showed up quickly in a debut week that was less about production than survival.

The Reds are still managing the larger picture around Arroyo, not just the immediate injury fill-in. MLB.com noted that Cincinnati had considered using him in positions that are not his normal home, a sign the club wants to keep him versatile while De La Cruz is sidelined and while Arroyo adjusts to a faster strike zone, better breaking balls and less room for error. His first big-league week did not erase the offensive promise that brought him here, but it did underline how quickly a Triple-A heater can turn into a developmental stress test once the majors call.