RIO DE JANEIRO (AFP) - Andy Murray crushed Kei Nishikori 6-1, 6-4 on Saturday (Aug 13) to move one win away from becoming the first player to win back-to-back Olympic singles titles.

The world number two, and reigning Wimbledon champion, will face either 2008 Olympic gold medallist Rafael Nadal or Juan Martin del Potro in Sunday's championship match.

Victory allowed 29-year-old Murray to extend his mastery over Nishikori to 7-1 and stretch his current winning streak to a career-best 17 matches.