Astros minor league pitcher Reymin Guduan has been suspended for the remainder of the season because of a “disciplinary issue” with Class AAA Round Rock, general manager Jeff Luhnow said Sunday.

“He broke our team rules and is being disciplined because of it,” Luhnow said.

Guduan appeared in seven major league games this season, allowing seven earned runs in 5 ⅓ innings. The southpaw represents most of Houston's lefthanded relief pitching depth in its upper minor league system.

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A 27-year-old who has pitched in parts of three major league seasons, Guduan had a 2.63 ERA in 27 ⅓ innings with Class AAA this season.

Without Guduan in the fold, the Astros have three lefthanded pitchers on their 40-man roster — major league starter Wade Miley along with minor leaguers Cionel Perez and Framber Valdez. Perez is on the injured list with a mild forearm injury he continues to rehab in West Palm Beach, Fla.

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