The Boston Red Sox secured a convincing 9-3 victory over the St. Louis Cardinals on Sunday, highlighted by Willson Contreras's impressive performance against his former team. Contreras, who was traded from St. Louis to Boston in December, hit a two-run homer in the second inning and achieved a career-high four hits, finishing with three RBIs. Trevor Story also shined with four hits. Brayan Bello (1-1) pitched effectively, allowing two runs and six hits over 6 2/3 innings in his 100th career start. The Red Sox quickly established a lead, scoring seven runs in the first four innings, including a three-run double from Jarren Duran. For the Cardinals, Jordan Walker hit his major league-leading seventh home run, but pitcher Andre Pallante (1-1) struggled, giving up seven runs in five innings. The Red Sox will face the Minnesota Twins next, while the Cardinals will host the Cleveland Guardians.