Rafael Nadal is one win away from back-to-back titles…

The 29-year-old Spanish tennis star will face Kei Nishikori in the Barcelona Open final after both past champions won their semifinals in straight sets on Saturday.

Nadal fought off Germany’s Philipp Kohlschreiber 6-3, 6-3 to return to his first final here since 2013, when he won the tournament a record eighth time.

Last weekend, Nadal defeated Gael Monfils to claim a ninth title at the Monte Carlo Masters.

Nishikori, the two-time defending champion, beat Benoit Paire of France 6-3, 6-2 earlier on the outdoor clay court.

Nadal holds an 8-1 win-loss record against Nishikori, but expects a tough final.

“I will have to play my best,” he said.

The top-seeded Nadal eased past Kohlschreiber, breaking his serve three times and saving the only break chance he conceded to the German. The home favorite sealed the win when Kohlschreiber hit his return long.