Andy Murray was booed by the mainly French crowd at the Monte Carlo Tennis Masters for using drop shots in his 6-3 6-3 third-round win over injured Frenchman Gilles Simon.
Simon twisted his ankle at the start of the second set and had heavy strapping applied before gingerly carrying on.
Murray showed no mercy and after the first drop had a struggling Simon stranded, the Briton regularly used his favourite shot with the boos for the world number four and cheers for Simon intensifying after each attempt.
Before Tuesday's second-round win over Radek Stepanek, third seed Murray had not won a match in almost three months since his Australian Open final defeat by Novak Djokovic.
The 23-year-old, whose public image in the past suffered from occasional teenage strops, could face more grief from the crowd when he plays Frederico Gil in the quarter-finals on Saturday after the Portuguese beat another Frenchman Gael Monfils.
