Chapman was optioned to Astros' minor league camp on Wednesday, Brian McTaggart of MLB.com reports. Chapman pitched well in nine spring appearances, permitting three runs on 11 hits and three walks with 11 strikeouts over nine Grapefruit League innings, but Joe Thatcher beat him out to open 2015 as the Astros' second left-hander out of the bullpen behind Tony Sipp. Despite the demotion, Chapman doesn't expect to stay with Triple-A Fresno the whole year, as he compiled a 1.23 ERA in 43 relief appearances at the same level last season.