The Phillies were working on a complex trade on Monday night that could land them Mark DeRosa. According to rumors, DeRosa could end up in Philadelphia as part of a blockbuster trade that would send San Diego's Jake Peavy to the Chicago Cubs. There were also rumblings that a fourth team, perhaps the Orioles, could get involved. "Three teams, possible," a Phillies' source said. "Four, doubtful."