CINCINNATI - Jacob deGrom figured on a few butterflies.

"I'm sure there will be some nerves," the Mets righthander said on Tuesday before the 86th All-Star Game. "There is every time I throw. I think I'll probably feel a little more than normal, but I think I'll be all right. Maybe like my debut. Hopefully not that bad."

His debut came May 15 of last year against the Yankees at Citi Field and, in truth, that went pretty well as deGrom allowed one run and four hits in seven innings of a 1-0 loss.

In other words, nerves aside, he did just fine. Which certainly was the case again in his All-Star Game debut.

The 27-year-old came out firing for the National League in the sixth, striking out the side in a dominant 10-pitch frame in which he threw nine strikes.

It did come in a losing cause as the American League, behind home runs by Mike Trout and Brian Dozier, and two RBIs from Prince Fielder, beat the NL, 6-3, in front of 43,656 at Great American Ballpark.

The victory means homefield advantage in the World Series for the AL team.

Trout won MVP honors for the second year in a row, the only player to repeat in the 54 years the award has been given.

Three Yankees appeared in the game. Brett Gardner made his All-Star debut as a pinch hitter for Adam Jones, the first of the three Yankees to appear in the game. He came up with two outs in the fifth against Clayton Kershaw, an inning in which the AL took a 3-1 lead on an RBI single by the Rangers' Fielder and an RBI double by the Royals' Lorenzo Cain.

With Fielder at third and Cain at second, Gardner struck out looking against Kershaw, taking a 73-mph curveball to end the four-pitch at-bat (Gardner struck out looking in the eighth against Pirates righthander Mark Melancon, a former Yankee).

The Pirates' Andrew McCutchen hit a leadoff homer against the Rays' Chris Archer in the sixth to make it 3-2.

Manny Machado of the Orioles hit an RBI double off Brewers righty Francisco Rodriguez in the seventh and Mark Teixeira, in his third All-Star contest and entering on this night at first base for Albert Pujols in the sixth, moved Machado to third with a groundout (Teixeira struck out on a 102-mph fastball by Reds lefthander Aroldis Chapman, who struck out the side, in the ninth). Fielder brought in Machado with a sacrifice fly to center. making it 5-2.

Dellin Betances, who made last year's AL squad but did not appear in the game, made his All-Star debut in the seventh. He walked the Cubs' Kris Bryant with one out but struck out the Giants' Joe Panik on a curveball and ended the inning by getting A.J. Pollock of the Diamondbacks to ground out to third.

Dozier homerd off Melancon in the eighth to make it 6-2.

Though their team lost, few could compete with deGrom and Chapman's night.

DeGrom, 9-6 with a 2.14 ERA this season -- with 112 strikeouts in 1132/3 innings -- struck out A's catcher Steven Vogt with a 97 mph fastball, the Indians' Jason Kipnis with a 97-mph fastball, and Jose Iglesias of the Tigers with an 81-mph slider. Vogt and Iglesias each went down on three pitches.

Chapman, the seed-throwing Reds reliever, struck out Brock Holt, Mike Moustakas and Teixeira, with 12 of the 14 pitches he threw travelling 100 mph or more.