Jacob Misiorowski was absolutely dealing on Friday night—until he wasn't.

The Milwaukee Brewers' electric young pitcher exited his start against the Washington Nationals after 5⅓ hitless innings, leaving fans and teammates concerned. Before departing, Misiorowski had struck out eight batters, walked just two, and had fanned the last four hitters he faced. He was in complete control.

The trouble came after a 98.9 mph fastball to James Wood—his second-slowest heater of the night out of 53 pitches. Despite showing no visible signs of pain, Misiorowski called for the trainer. The broadcast speculated it could be a cramp or a lower-half issue. The Brewers quickly brought in reliever Aaron Ashby, preserving the no-hitter.

At just 24 years old, Misiorowski is already making waves in his second MLB season. He entered the game leading the league in strikeouts with 59, and his fastball topped out at 103 mph against Washington. He's currently among the top 10 contenders for the NL Cy Young Award, according to sportsbooks.

For a pitcher known for his overpowering stuff and growing reputation as one of the game's hardest throwers, any injury scare is significant. Fans will be watching closely for updates on one of baseball's most promising arms.