BOSTON (AP) -Aaron Cook was added Tuesday to the Colorado Rockies' roster for the World Series, and he'll start Game 4 at home against Boston.
Cook, who was the Rockies' opening-day starter, hasn't pitched in a major league game since Aug. 10 because of a strained muscle in his side.
Cook pitched in a simulated game Saturday at Coors Field while the Rockies waited through a record eight-day layoff for the World Series, proving he was healthy and ready to return to the rotation.
With Cook, who was 8-7 with a 4.12 ERA, rookie Franklin Morales goes to the bullpen, giving manager Clint Hurdle a third left-handed reliever to go with Jeremy Affeldt and Brian Fuentes.
The odd man out is reliever Taylor Buchholz, who hasn't pitched in the playoffs.
Hurdle had said the Rockies needed to guard against an emotional decision. Cook has been in the organization longer than anybody on the roster except Todd Helton, and made a comeback after developing life-threatening blood clots in his lungs during a game against the Cincinnati Reds three years ago.
In June, Cook lost a 2-1 decision at Boston despite allowing just two runs on seven hits in 7 1-3 innings.

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