Roy Oswalt's first game as a Phillie left ample room for improvement.
Craig Stammen carried a shutout into the seventh inning and the host Washington Nationals roughed up Oswalt in his Philadelphia debut, halting the Phillies' eight-game winning streak with an 8-1 victory Friday night.
"I came out amped up, held the ball a little tight," said Oswalt, who absorbed his major league-leading 13th defeat. "Didn't really start feeling better until the last two innings. Didn't really go my way."
Oswalt (6-13), a former 20-game winner acquired from Houston Thursday, allowed five runs and seven hits in six innings. He walked two, struck out four and hit two batters.
Stammen (3-4) gave up one run and five hits in 61/3 innings.
Adam Kennedy had a season-high four hits for the Nationals, who have won three of four.
Braves 6, Reds 4
Jason Heyward doubled home two runs with two outs in the 10th inning for visiting Atlanta. Joey Votto had three hits, including an RBI double and a solo homer that tied it at 4 in the eighth for Cincinnati. Votto leads the NL with 27 homers and a .326 average.
Astros 5, Brewers 0
J.A. Happ (2-0) allowed two hits in six innings in his debut for host Houston.
Tigers 6, Red Sox 5
Jhonny Peralta hit two homers in his first game since being traded and visiting Detroit withstood a grand slam by Boston's David Ortiz in the ninth inning. Peralta, obtained from Cleveland on Wednesday, hit a solo homer in the second inning then connected again off Jon Lester (11-6) for a two-run shot in the fifth.
White Sox 6, Athletics 1
Twins 5, Mariners 3
Blue Jays 8, Indians 1
Chisox acquire Jackson
Arizona traded righthander Edwin Jackson to the White Sox for rookie Daniel Hudson and lefthander David Holmberg . . . Nationals infielder Cristian Guzman agreed to be traded to the Rangers. Washington gets two minor-league pitchers. - AP