Peterson will start Game 5 of the NLCS against the Dodgers on Friday, Pat Ragazzo of SI.com reports.

Peterson won't pitch as scheduled Wednesday against Atlanta since the game was postponed due to inclement weather, Joel Sherman of the New York Post reports.

Peterson (9-2) took the loss Tuesday, giving up five runs (four earned) on eight hits and two walks over 4.1 innings as the Mets were downed 6-2 by the Blue Jays. He struck out two.

Peterson (9-1) picked up the win Tuesday, allowing one run on six hits and a walk over six innings in a 7-2 victory over the Red Sox. He struck out 11.

Peterson (8-1) picked up the win over the Padres on Saturday, allowing one run on five hits and two walks over 7.1 innings while striking out two.

Peterson did not factor into the decision in a loss to the Angels on Saturday, allowing two runs on five hits and one walk over six innings while striking out four.

Peterson (5-1) was saddled with the loss Sunday, allowing four runs on four hits and three walks over five innings against Atlanta. He struck out seven.

The Mets activated Peterson from the paternity list Monday.

The Mets placed Peterson on the paternity list Friday.

Peterson came away with a no-decision in Saturday's 5-2 win over the Pirates, giving up two runs on five hits and two walks over 4.1 innings. He struck out five.