"I couldn't throw my slider," Rosario said, blaming the wet weather.
"He was having a hard time throwing strikes (and) then all of a sudden he started overthrowing," Phillies manager Charlie Manuel said. "Then he hit a couple of batters, he started getting behind and they hit him. He kind of lost his composure."
Atlanta fill-in starter Royce Ring allowed one run and three hits in two innings of work to earn the win. Ring was given the start when Braves manager Bobby Cox decided to hold veteran Tim Hudson back.
"I didn't want him to warm up in the rain. It was a bad day to pitch," Cox said of a game that was delayed by 31 minutes at the start because of rain.
Cox's Braves improved to 10-5-2 in Grapefruit League play. The defending National League East champion Phillies dropped to 5-11-1.
After the game, Manuel said his team needs to step it up for the remainder of the spring schedule. Philadelphia has dropped nine of 11 after starting 3-2-1.
"It's good to be relaxed and it's good to be loose, but it's about time for us to talk," Manuel said. "We got some guys that are too cool and there's a fine line between having a real good time and being relaxed, and taking it for granted and being complacent.
"We have something happening, but it's nothing that we can't take care of."
Notes:
Following Friday's game, the Phillies reassigned top
pitching prospect Carlos Carrasco to minor league camp. Before he
left, Carrasco threw three scoreless innings of relief against the
Braves. ... The Phillies also reassigned left-handed pitcher Josh
Outman and outfielders Greg Golson and Brandon Watson. ... Cox said
Hudson will throw in a simulated game on Saturday.