The Scot prevailed 7-6 6-4, but admitted afterwards that the Argentinian’s constant cries and groans tested his patience.
“It was extremely, extremely loud — more than what I have experienced from any other player on the tour,” said Murray, who exchanged words with his opponent during the ninth game of the opening set.
Murray will meet Juan Martin Del Potro in the quarter-finals tomorrow, while Rafael Nadal will face Roger Federer for the first time since last year’s semi-final in Indian Wells.