In tennis, Sir Andy Murray reached the Qatar Open quarter-finals with a battling 7-6, 8-6, 7-5 win over Austrian Gerald Melzer.
World number 68 Melzer produced a gutsy display, saving eight first-set points before eventually succumbing to the world number one in the tie-break.
The Austrian broke as Murray served for the match at 5-4 but the Scot won the next two games and will next play world number 44 Nicolas Almagro of Spain.
Meanwhile, Roger Federer was defeated by German teenager Alexander Zverev at the mixed teams Hopman Cup in Perth.
The Swiss 17-time Grand Slam winner lost 7-6, 7-1, 6-7, 4-7, 7-6, 7-4 in two hours and 30 minutes in a match of high quality.