The Astros have optioned left-hander J.A. Happ to Triple-A Oklahoma City. Happ, who came to Houston in the trade that sent Roy Oswalt to Philadelphia in July 2010, is 4-14 this season and has struggled with a 6.26 ERA in 22 starts. "I'm disappointed," Happ said. "You never expect to be sent down. Hopefully I can go down and clear my head a little bit and get this thing figured out sooner than later. It's way too late to start feeling sorry for yourself. I'm going to go down there and do what I've been trying to do. I've been working as hard as I can."