In a rare occurrence, the Phillies' ace blew a six-run lead on Wednesday against the Braves. Halladay, who was 107-0 when teams spotted him a four-run lead, surrendered a whopping 12 hits and eight earned runs in six innings.
His bounce-back opportunity comes on Monday at Citizens Bank Park. The Mets, who have won two straight after dropping four in a row, will counter with left-hander Jon Niese.
"You always talk about short-term memory, but you never forget those," Halladay said after his last outing. "It's happened. You don't forget about them."
Niese is also looking to bounce back from a short outing against the Astros in which he allowed five runs in three innings. It was his first appearance this season that didn't result in a quality start.
"It's just one of those games where it gets away from you early," Niese said. "You've just got to put it in the past and get ready for the next start."
Working in Niese's favor, though, is the momentum from an earlier start against the Phillies, when he blanked Philadelphia over 6 2/3 innings on April 14.
A strong outing from Halladay would come at just the right time for the Phillies, who remained a game under .500 at 14-15 even after coming up with a much-needed win over hot division rival Washington in their Sunday night game.
Mets: Torres compiling modest hit streak
Center fielder Andres Torres was 1-for-3 with a run and a walk in Sunday's win against the D-backs. He has at least one hit in each of his six games since returning from the disabled list and has at least one RBI in five of the six contests.
Opponents have scored first in six of the Mets' last eight games. The Mets are 7-10 when the opposition scores first.
Eight of the Mets' 15 wins this year have been come-from-behind victories.
Phillies: Pitching bouncing back from recent struggles?
The Phillies entered their series finale on Sunday against the Nationals with a team ERA of 4.73 (34 earned runs in 64 2/3 innings) over their last seven games (3-4), but left-hander Cole Hamels might have turned that around with one start. Hamels pitched eight innings of one-run ball on Sunday. Although reliever Brian Sanches gave up two runs in an inning, the Phillies collectively lowered the batting average of opposing hitters from .298 (75-for-252) in the Phillies' last seven games to .289 (83-for-287) over the last eight.
The Phillies have not had a sub-.500 record in the month of May since 2002, when they went 12-14.
The Mets took two of three in the teams' first meeting of the year, when they outscored the Phillies, 12-10, in a three-game set in Philadelphia from April 13-15.
The Mets are 7-3 in one-run games and 11-3 in contests decided by two or fewer runs.