Gambling content 21+. The New York Post may receive an affiliate commi sion if you sign up through our links. Read our for more information. The Mets and Padres open up a three-game series at Petco Park on Monday night. The Amazins are in good form over the last week, but things are still as tight as ever atop the NL East, so the Mets will need to continue their roll in San Diego. Frankie...