World number four Andy Murray booked his place in the quarter-finals of the Sony Ericsson Open in Miami with a straightforward 6-3 6-4 win over Frenchman Gilles Simon.
Murray secured one break of serve in both sets and was only really in trouble on his serve on one occasion. His opening service game lasted more than 15 minutes as the Scot saved three break points.
It was a comfortable afternoon for Murray who never looked in any danger of losing the match and will now face ninth seed Janko Tipsarevic in the last eight.
"The first game probably helped because I saved a couple of break points," Murray told www.atptour.com. "After that, I kind of loosened up a little bit; felt much better.
"So that first game, even though it was like 17, 18 minutes, was probably a good thing after not playing for a few days."
There where similarly routine victories for the world's top two with Novak Djokovic beating another Frenchman Richard Gasquet 7-5 6-3, while Rafa Nadal is also through after a 6-4 6-4 win over Kei Nishikori.
Nadal will be joined in the quarter-finals by Jo-Wilfried Tsonga who beat Florian Mayer 6-3 6-2, while American Mardy Fish had a slightly tougher match as he eventually overcame Nicolas Almagro 6-3 6-7 (2-7) 6-3.
Completing the days action there was also a win for David Ferrer who knocked out 11th seed Juan Martin del Potro with a 6-3 6-3 victory.