sentences:  The Flyers traded Greentree on June 30, 2008 to the Calgary Flames for Tim Ramholt.Greentree spent most of the 2008–09 season with the AHL's Quad City Flames, earning a brief call up with Calgary in February, where he played in two games.Early in the 2009–10 season, he was dealt to the Chicago Blackhawks for Aaron Johnson.