CHICAGO -- Lucas Harrell, who has been on the verge of a breakthrough with the Chicago White Sox for over a year, was claimed off waivers by the Houston Astros.

Harrell was a disappointment this spring when he was a candidate to fill a long relief/spot starter role that Philip Humber eventually turned into a full-time starter spot.

The right-hander had two separate stints with the White Sox this season, appearing in three games. In five innings he posted a 7.20 ERA. In 11 career appearances with the White Sox he was 1-0 with a 5.28 ERA.