KANSAS CITY, Mo. — Not much could slow down the Yankees on their road trip against the two worst teams in the American League.

Nothing, it turns out, other than a tricky hop on Whit Merrifield’s game-winning single in the bottom of the 10th in Sunday’s 8-7 loss to the Royals at Kauffman Stadium.

Gio Urshela, who had just made a fine play on a Nicky Lopez chopper to keep Billy Hamilton at second base, couldn’t do the same on Merrifield’s hit, as the ball went into left field, Hamilton came around to score and the Yankees had their season-high seven-game winning streak snapped.

“We get bad-hopped at the end,’’ Aaron Boone said. “Otherwise, I’m sure we would have gotten to them.”

Boone’s confidence even in defeat isn’t hard to fathom, since the Yankees stormed back from a six-run deficit with a Gleyber Torres three-run homer in the sixth and three more runs to tie the game in the top of the ninth, capped by Aaron Hicks’ two-run single that knotted the game.

With two on and two out, though, Gary Sanchez followed Hicks’ single with a fly out to right.

After four shutout innings from Nestor Cortes Jr. — the lefty even got out of a bases-loaded jam in the bottom of the ninth — Boone turned to Jonathan Holder to try to extend the game further in the 10th.

The right-hander was one of the few options Boone had available thanks to recent heavy bullpen usage.

Holder walked Hamilton with one out and the speedy outfielder stole second before Merrifield’s hard-hit, two-out grounder to third.

“It took a bad hop and there was nothing I could do,’’ Urshela said. “It was definitely a hard play. Your instinct is to get a glove on the ball and try to stop it from going by.”

Boone had no issue with Urshela at third base — or anyone else on his team — following just the Yankees’ second loss in 13 games with San Diego and Boston coming to The Bronx next.

They fell behind thanks to a rough outing by Domingo German, who allowed four homers — all with two outs.

The most damaging was the first, a three-run shot by Martin Maldonado in the second inning that gave Kansas City a 3-1 lead.

“Today was definitely a bad day for me,’’ German said through an interpreter. “I couldn’t command my pitches and that’s what happens when you miss with your location.’’

He also gave up a solo shot to Ryan O’Hearn in the fourth, a two-run homer to Hunter Dozier in the fifth, which was followed on the next pitch by another homer to Jorge Soler. German has been shaky in three of his past four starts.

“The Royals hit balls out of the park and built a big lead,’’ Boone said. “We couldn’t quite get back enough.”

Much like on Monday in Baltimore, they nearly did.

Left-hander Danny Duffy cruised into the sixth, when he retired the first two batters of the inning before Hicks hit what should have been a routine grounder to short to end the inning.

But Adalberto Mondesi’s throwing error extended the inning, Sanchez singled to left and Torres hit a three-run homer to center to get the Yankees back to 7-4.

Singles by Clint Frazier and Urshela with one out in the ninth against ex-Yankee Ian Kennedy brought pinch-hitter Brett Gardner to the plate.

Gardner hit a foul tip that Maldonado caught for the second out. DJ LeMahieu singled to make it 7-5 before Luke Voit walked to load the bases for Hicks, who tied it. Sanchez’s fly ended the inning.

Cortes staggered in the bottom of the inning, but got O’Hearn to pop out to keep the game tied in the ninth.

Unlike their previous seven games, the Yankees couldn’t finish it with a victory.