When a weird fourth inning devolved into the Mets’ ugly 12-2 loss to the Phillies on Friday night, David Stearns’ words from hours earlier proved prescient. He was speaking about this stage of the baseball calendar — the postseason push — and the run the Mets have been on lately when he acknowledged the reality: Sometimes with fun comes stress.

T he Mets were riding a four game streak high, and were two games ahead of the Braves, firmly in the wild card race. The Phillies stood with one game between them and clinching a