G-shell-man

Righty struggles as Mets get routed

CHICAGO — Robert Gsellman’s recent revival took a hiatus Tuesday, with a performance that should have been bottled and tossed into Lake Michigan.

Even before the fourth inning, Gsellman’s night was in chaos. Then Kris Bryant came to the plate and turned ugliness into wreckage for the Mets.

Bryant’s three-run homer in the fourth sank Gsellman in an 8-3 loss to the Cubs at Wrigley Field that guaranteed the Mets (63-81) their seventh nonwinning season in the last nine years.

Kyle Schwarber and Ian Happ homered against Mets relievers to complete the onslaught on a night Gsellman (6-7, 5.58 ERA) was finished after four innings.

Overall, the right-hander allowed four earned runs on five hits and five walks, a step backward after pitching to a 2.91 ERA in his previous four appearances.

“Tonight I had too many walks, which is frustrating, and that just can’t happen up here,” Gsellman said. “Those walks are going to lead to runs eventually, so I have to minimize those.”

Manager Terry Collins isn’t giving up on Gsellman, who has been among the club’s biggest disappointments this season.

“I still think this kid is a great competitor, and he’s got a tremendous future ahead of him,” Collins said. “We’ve just got to get it turned around to where he goes into the winter and gets ready for spring train- ing, he still has the same confidence he left with last year.”

Mets director of baseball operations Adam Fisher will leave the organization to become the Braves’ assistant general manager, an industry source confirmed. Fisher, who joined the Mets in 2003, is highly regarded for his analytical and scouting skills.

Noah Syndergaard, whose rehab has stalled following his last minorleague start, played catch before the game.

Tomas Nido was recalled from Double-A Binghamton to give the Mets a third catcher.