In baseball, few things sting more than a bullpen letting a brilliant starting performance slip away. That was the harsh reality for the New York Mets on Thursday night, as reliever Luke Weaver was left to shoulder the blame after a promising lead evaporated.

Rookie right-hander Nolan McLean delivered a gem against the Arizona Diamondbacks, tossing 6.1 strong innings with eight strikeouts and leaving the game with a commanding 7-1 lead. It was a performance worthy of a win, a chance for the young pitcher to cement a career highlight.

Unfortunately, the relief corps couldn't seal the deal. Luke Weaver, entrusted with preserving the advantage, was charged with allowing five earned runs in just two-thirds of an inning, turning a sure victory into a devastating loss. The collapse was immediate, with key hits from Gabriel Moreno and Alek Thomas quickly erasing the cushion McLean had built.

Weaver was unequivocal in his remorse after the game. "Yeah, it adds a little bit more of a sting," he told SNY. "He [McLean] deserves to walk out of that with his head held high... I hated to be that guy for him." The veteran reliever vowed to make it right, adding, "I'll pick him up at some point."

The outing was an uncharacteristic blip for Weaver, who has generally been reliable since joining the Mets on a two-year deal this past offseason. His career renaissance has been built in the bullpen, where he's found far greater success than he ever did as a starter. For a team and its fans, nights like Thursday are a tough reminder of the fine margins in the game—where one shaky inning can undo hours of excellent work. The Mets will look to Weaver and the bullpen to bounce back, proving their resilience is as strong as their talent.