Kei Nishikori came up short in his bid to become the first Asian man to win a Grand Slam title, losing in straight sets to Marin Cilic in the U.S. Open final on Monday.

Tenth-seeded Nishikori fell 6-3, 6-3, 6-3 to his Croatian opponent, who served up 17 aces to just two from Nishikori.

"(Cilic) was playing really well today," Nishikori said. "I couldn't play my tennis.