LAKE BUENA VISTA, Fla. --- Francis Martes will either serve as a reliever in the Astros' bullpen or a starter in their Class AAA rotation in 2018. The 22-year-old righthander's role will partially depend on how many relievers the team adds this winter.

"Part of it depends on what we get done between now and the beginning of the year as far as the pitching staff goes," Astros general manager Jeff Luhnow said. "But he's a guy who could go to Triple A and be in the rotation there. He could be part of our bullpen in the big leagues. I don't see him being a starter in the big leagues this next year unless there are a few injuries."

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Media: Brett Coomer, Houston Chronicle

Starting in Class AAA seems the most likely route. Martes made only eight starts in the Pacific Coast League before he was called up to the Astros amid a rash of injuries last June. In 54 1/3 major league innings he had a 5.80 ERA with 69 strikeouts against 31 walks. He made four starts as opposed to 28 relief appearances.