The New York Mets are attempting to improve their standing in the NL East by replacing struggling pitcher David Peterson with Sean Manaea, who will either start or serve in a bulk relief role. Peterson’s poor performance included a 5.57 ERA and 1.669 WHIP over 53.1 innings, although a .379 batting average on balls in play suggests bad luck may be a factor. Despite this, his 3.03 FIP indicates he has pitched more effectively than his ERA suggests.
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