Rafael Nadal defeated Andrey Kuznetsov 6-3, 6-3 on Tuesday to win his 11th consecutive match this year and advance to the third round of the Madrid Masters.
Nadal broke Kuznetsov's serve once in the first set and twice in the second to secure the win in his opening match at the clay-court tournament that he has won twice in the last three seasons.
The Spaniard had four aces and no double faults against the 39th-ranked Russian, winning the match in 1 hour, 18 minutes.
Nadal will next face either American Sam Querrey or Frenchman Lucas Pouille, who play their match on Wednesday.
Nadal hasn't lost since his opening match at the Miami Open in March. The former No. 1 is coming off consecutive titles in Monte Carlo and Barcelona.