Long-time Astros closer and fan favorite, Billy Wagner, who was traded to the Phillies during this past offseason, was placed on the 15 day disabled list yesterday (retroactive to May 7) with a pulled groin.
Wags is easily the best Astros closer of all-time. He has a 2.50 career ERA, compared to a league average of 4.31 during his career, and he has saved 104 runs more than an average pitcher would have saved in 477 games over his career. After a great season with the Stros last season, Wags is off to a good start this season with a 1.20 ERA/5 RSAA (runs saved against average) in his first 13 games.