Boston Red Sox star Chris Sale apologized for his outburst in the clubhouse tunnel following his rehab start for the Triple-A Worcester Red Sox on Wednesday.

Sale told reporters he had a “seven-year-old temper tantrum” and said he was “an idiot” during the meltdown.

The seven-time All-Star logged 3.2 innings of work in Worcester’s 4-2 loss to the Scranton/Wilkes-Barre RailRiders.