Rafael Nadal was given a surprisingly tough time by Kyle Edmund in his opener at the Monte-Carlo Masters on Wednesday.
The Spaniard, who is chasing an unprecedented 10th title in the French city this week, recovered from a second set blip to record a 6-0, 5-7, 6-3 victory.
At first, Nadal looked to be cruising into the third round. Looking at ease on his favoured clay surface, the 30-year-old broke Edmund's serve three times in a row during the 29-minute first set.
Employing his usual bag of tricks on clay, Nadal mixed powerful forehands with deft flicks to leave Edmund floundering.
But the Brit seemed to find something different in the second set, and started to make life very difficult for his much vaunted opponent.
Edmund turned a 1-2 into a 4-2 lead as the crowd got involved and willed the underdog on. Edmund would go on to win the second set and force a decider, as a possibly huge upset loomed.
Kyle Edmund has forced a third! Will he get a first top-10 win?
— Tennis TV (@TennisTV) April 19, 2017
But Nadal was able to regroup in the third set, winning four of the last five games to keep his quest for Monte Carlo glory alive.
Also in action was World No 1 Andy Murray, marking his return from a month out with injury by beating Giles Muller 7-5, 7-5.
It was his first competitive action since March 12 – save for a recent exhibition match against Roger Federer – but Murray looked solid as he dispatched the Frenchman in just under two hours on court.
The victory required plenty of graft, however, with Murray eventually wearing down his tenacious opponent in two sets.
"It was a tough first match," the Scot told Sky Sports. "I started slow and wasn't serving well at the start.
"I only started serving properly four, five days ago, so I knew it was going to take time but I didn't expect to start the match serving like like that."
All of Wednesday's second-round results
Diego Schwartzman (Argentina) beat 12-Roberto Bautista (Spain) 6-3 7-6(3)
Rafa Nadal (Spain) beat Kyle Edmund (Britain) 6-0 5-7 6-3
Lucas Pouille (France) beat Paolo Lorenzi (Italy) 6-2 6-4
Andy Murray (Britain) beat Gilles Muller (Luxembourg) 7-5 7-5
Marin Cilic (Croatia) beat Jeremy Chardy (France) 6-3 6-0
Albert Ramos (Spain) beat Carlos Berlocq (Argentina) 6-2 6-2
Alexander Zverev (Germany) beat Feliciano Lopez (Spain) 6-0 6-4
Tomas Berdych (Czech Republic) beat Tommy Haas (Germany) 3-6 6-1 6-4
Pablo Carreno (Spain) beat Karen Khachanov (Russia) 6-4 6-4
Stan Wawrinka (Switzerland) beat Jiri Vesely (Czech Republic) 6-2 4-6 6-2
Dominic Thiem (Austria) beat Robin Haase (Netherlands) 6-3 6-2