Walker Buehler's return to Boston has raised concerns as he is set to undergo shoulder testing, following a less-than-ideal recovery. Red Sox manager Alex Cora expressed the need to evaluate Buehler, who had been scheduled to start against the Twins but will be replaced by Brayan Bello. The team's decision on the weekend's starting pitcher remains pending, with Garrett Crochet confirmed for Sunday.

Buehler, who signed a one-year contract worth $21.05 million last December, has shown promise with a 4-1 record and a 4.28 ERA over five starts. However, Cora noted that Buehler hasn't quite bounced back as expected, leading to uncertainty about a potential stint on the injured list. The Red Sox aim to monitor his condition closely.