In the final weeks of a season that has long since closed its doors on their own ambitions, the New York Mets travel to Texas carrying something unexpected: relevance. Not the kind born of hope, but the kind born of consequence — for it is sometimes the fallen who determine the fate of those still standing. With a capable arm on the mound and nothing left to lose, New York steps into a Rangers clubhouse where urgency has curdled into anxiety, and where a struggling visitor might yet reshape a division race.