Riley O'Brien Dealing With Calf Soreness
St. Louis Cardinals right-handed reliever Riley O'Brien (calf) is dealing with some calf soreness in camp, according to Jeff Jones of The Belleville News. The Cardinals are now discussing what it means for O'Brien's participation in this year's World Baseball Classic for Team South Korea. The 31-year-old will be in the mix for saves in St. Louis in 2026 with JoJo Romero as long as he's healthy. In his second year in St. Louis in 2025, O'Brien was hard to hit, posting a 2.06 ERA (1.15 WHIP), his first six career saves, a career-high 45 strikeouts, and 22 walks in 48 innings over 42 appearances out of the bullpen. It was his first extended look in the big leagues, and he did not disappoint. O'Brien struck out only 22.6% of the batters he faced, though, and also had an elevated 11.1% walk rate for a high-leverage arm, so there will be plenty of volatility and risk for a pitcher who has never held down the closer's role for an entire season.
Source: Belleview News - Jeff Jones
Source: Belleview News - Jeff Jones
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