Roy Oswalt faced his long-time former team, the Astros, on Sunday as a member of Philadelphia's heralded rotation. After coming over in a trade last summer, Oswalt went 7-1 with a 1.74 ERA with the Phillies last season. He allowed five hits, two runs, one walk and one home run and struck out six in six innings Sunday in a 7-3 win. "I really didn't know what to expect when I got out there," Oswalt said. "It was a little bit different, being there for so long and still knowing some of the faces. When you first start facing some of the guys you've played with, it's almost like Spring Training. That's the only time you face your own guys. You know their weaknesses, some of their strengths. They kind of know you, too. They've been playing behind you for a while. It was a little different."