Mets Best Free-Agent Signing No. 1: Mike Piazza
This offseason, we’re looking at the Mets’ history with free agency. This list may change in the coming years in terms of rankings and new additions (Maybe Carlos Correa? Possibly Justin Verlander?). But for now, we’ve featured an underdog pitcher at No. 10 up to the greatest center fielder at No. 2. And at the top of the list is a player who joined the team mid-season via...