Sean Sullivan Shines in Debut

Sean Sullivan, the Rockies’ No. 11 prospect at just 23, made a dazzling MLB debut, tossing three scoreless innings against the A’s, striking out two and walking none while throwing 33 strikes on 49 pitches. He shut down nine of 12 batters faced with a sharp four-pitch mix, staying calm even with runners in scoring position. Though he left early due to illness and the Rockies ultimately lost after Seth Halvorsen surrendered two homers, Sullivan’s debut was a standout moment — one of only seven Rockies starters to open a regular-season game without allowing a run since 2020. His poise and performance signal a bright future, even if the pressure of his first big league outing was a test he passed with flying colors. Support the show:Get a discount at https://solipillow.com/discount/dnn. Advertise on DNN:[email protected] This is an automated, high-level news summary based on public reporting.Report issues to [email protected]. View sources & latest updates:https://sources.thednn.ai/a32baa87fee96beb