Perez is 0-1 with a 3.60 ERA in six starts since June 16. He pitched well in his most recent start Sunday, allowing one run and four hits over six innings in the Dodgers’ 2-1, 12-inning win over the San Diego Padres.
In 20 starts this season, Perez has just eight decisions.
“Nothing new,” he said Sunday. “But we won.”
The NL West-leading Dodgers had won four straight before falling to the Phillies 9-5 in 11 innings Friday.
After the Phillies jumped out to a 5-0 lead with four homers off Kazuhisa Ishii in the first two innings, the Dodgers rallied to tie the game when Jayson Werth hit a solo shot off Tim Worrell in the ninth.
The Phillies, who began their season-high 13-game road trip by losing six of seven, have won four straight. They trail the NL east-leading Atlanta Braves by 4 1/2 games.
Philadelphia, which swept a three-game series from the Dodgers at Citizens Bank Park from May 18-20, has won seven straight against Los Angeles dating the last season.