The Phillies placed Cliff Lee on the 15-day DL on Saturday, three days after he strained a muscle in his left side in the 10th inning of his gem at San Francisco. "We're being very cautious with this," GM Ruben Amaro Jr. said. `'There's no reason for him to kind of completely blow it out because it's an injury that if he hurts himself and really pulls it, we could lose him for a long time. We'll shut him down, get him right and hopefully he'll miss only a couple of starts and go from there." Lee strained his left oblique. "I don't know what pitch it was, but he must have made a pitch that bothered him a little bit," Amaro said.