Inheriting the tying run at second base from Jacob deGrom with one out in the seventh, Henderson surrendered a two-run homer to pinch hitter Ryan Raburn. That proved the difference in the Mets' 4-3 loss to the Colorado Rockies on Sunday at Coors Field.
"It definitely caught too much plate," Henderson said. "Down 2-0, I definitely wasn't thinking about grooving one and getting back in the count. I was thinking about down on the corner and in to him. It just caught too much of the plate. You don't want to get beat on the pull side. And he got his hands through and got the barrel to it."
The former closer for the Brewers, Henderson (0-2, 2.08 ERA) quickly knew the damage had been done given his high-altitude surroundings.
"Anything in the air has got a chance," Henderson said. "Once I saw the trajectory of it, it was gone."
Manager Terry Collins said he liked the matchup between Henderson and Raburn.
"We knew Ryan was going to hit," Collins said. "We liked the power stuff. ... We really thought it was a good matchup."