The Phillies were riding a seven-game winning streak when they arrived in Houston for a weekend series with the Astros, but Houston has taken two of three to start the series as they look to spoil the Phillies' chances of grabbing the second NL wild card spot.
Houston will send Jordan Lyles to the mound on Sunday. The 21-year old is 4-11 with a 5.35 era for the season. Lyles had a nice outing on Tuesday, pitching five innings of scoreless ball.
The Phillies will counter with Roy Halladay. Halladay is 10-7 with a 4.01 era in the 2012 season, and he's been on a roll over the last several weeks. Halladay has recorded wins in each of his last four outings.
The game is set to begin at 1:05 p.m. CT from Tropicana field. It's the last time the two teams are scheduled to meet in 2012.