 Complete the following phrase:  Oswalt was selected by the Astros in the 1996 MLB draft. He made his MLB debut with Houston, in 2001, finishing his rookie season with a winloss record of 143. Oswalt was a back-to-back 20-game winner in 2004 and 2005. He helped lead the Astros to their first World Series appearance in 2005, and was named Most Valuable Player of the 