Tony Martin claims fourth world time-trial title in Doha

Martin matched Swiss ace Fabian Cancellara's achievement of four time-trial world titles with victory in the 40-kilometres test in Doha, Qatar.

The German, winner in 2011, 2012 and 2013 and second to Sir Bradley Wiggins in 2014, finished in 44 minutes 42.99 seconds for a commanding win. Olympic champion Cancellara was absent ahead of his imminent retirement.

Belarus' Vasil Kiryienka, the defending champion, finished second in 45mins 28.04secs.

Spain's Jonathan Castroviejo was third in 45:53.90, while Olympic silver medallist Tom Dumoulin of Holland was 11th.

Ireland's Ryan Mullen, the 13th of 70 riders named on the startlist, was the long-time leader, until the final six starters began finishing. He finished fifth.

Mullen clocked 46:07.74 to take his place as provisional leader.

He wrote on Twitter: "Nice little surprise to make it on to the hot seat. Gave it everything. May or may not have passed out at one point. Not cold."

Britain's Alex Dowsett clocked 46:54.07 to finish 12th, while Steve Cummings finished in 47:31.52 to place 25th.

The men's elite road race takes place on Sunday, with Mark Cavendish among the favourites.

The women's road race, with Lizzie Deignan (nee Armitstead) the defending champion, takes place on Saturday.