Andy Murray masters Bernard Tomic in Miami heat

Andy Murray began his Miami Masters tournament with a comfortable straight-sets victory over the Australian Bernard Tomic. Should Murray win the event, he will move up to No 2 in the world rankings.

The Scot never hit top gear in the contest, but was pleased at progressing. "I didn't hit it unbelievable today but I worked hard," he said after the 6-3 6-1 result. Training in Florida was an aid to Murray, who added: "Maybe I was more comfortable than my opponent, because I am used to the court and the wind and the humidity."

Fellow Brit Laura Robson lost to Alize Cornet in the second round. The match lasted over seven hours because of rain delays and power cuts, with the 36-year-old Frenchwoman finally winning 5-7 7-5 6-1.