World number one Rafael Nadal broke John McEnroe’s 34-year-old record for successive set wins to move into the quarter-finals of the Madrid Open.
Nadal, 31, beat Argentine Diego Schwartzman 6-3 6-4 on clay to take his winning streak to 50 sets in a row.
He will play Austria's Dominic Thiem on Friday for a place in the last four.
Nadal's 50 sets have included tournament wins in Barcelona, Monte Carlo and last year's French Open.