"It's obviously a pitch I want back," said Robertson. "I tried to throw a curveball for a strike. I didn't mean to hang it as bad as I did. I didn't see that outcome coming, but you've got to be a little better with the first pitch.
"It's easier to shake that one off when you win, for sure. It's frustrating because I really wanted to help us out in the game and keep some guys from having to go in, but it all worked out tonight."
His third blown save of the season would have been unusual except for earlier in the week, when he entered into a tie game and surrendered a three-run blast to the Astros' Chris Carter on a 3-0 pitch. He followed that up with a scoreless inning in back-to-back games against the White Sox on Friday and Saturday.
"If he tells me he's OK, I'm going to use him," said manager Joe Girardi. "Now, I won't use him [Monday]. He'll be off for me [Monday] and somebody else will have to get the job done. As you get later in the season, Robbie has done it before, you do it a little bit."
On Friday, Robertson became the fastest Yankees pitcher in terms of innings to reach 500 strikeouts, but the closer seemed optimistic Sunday that the home runs won't bother his mindset.
"I threw one pitch that I wanted back," he said. "It happens. These guys are good. They're not paid to hit ground balls or pop up. They're paid to put them in the seats."
Bryan Hoch is a reporter for MLB.com. Follow him on Twitter @bryanhoch and read his MLBlog, Bombers Beat. This story was not subject to the approval of Major League Baseball or its clubs.