The Boston Red Sox feel Eduardo Rivera is ready for a big jump.

A day after promoting the left-handed starter from Double-A Portland to Triple-A Worcester, the Red Sox called up Rivera on Wednesday to make his MLB debut. So Rivera is basically going straight from Double-A to the majors. Right-handed reliever Jack Anderson was optioned back to Triple-A.

What role the 6-foot-7 Rivera will fill is another question as the rotation currently has a hole due to right-hander Sonny Gray going on the 15-day injured list Tuesday with a strained right hamstring. But the bullpen has also been overworked in recent days and left-hander Payton Tolle, Talk Sox’s No. 1 prospect, is primed to be called up to fill Gray’s spot.

The 22-year-old Rivera had made two starts at Double-A Portland this year, pitching 10 innings with three walks and 16 strikeouts. In 2025, splitting time between High-A and Double-A, Rivera made 15 starts and five relief appearances, walking 46 and striking out 108 in 87 innings. Rivera pitched for Puerto Rico this spring in the World Baseball Classic.

Anderson was called up April 14 to make his MLB debut and has pitched three times covering eight innings, which could be the role for Rivera. Anderson allowed one run in each of those outings, while giving up eight hits and two walks while striking out six.

 

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