South African Richard Sterne cruised to a seven-stroke victory over former US Masters champion Charl Schwartzel Sunday in the Joburg Open. Sterne, runner-up behind Stephen Gallacher of Scotland in the Dubai Desert Classic last weekend, fired an eight-under final-round 64 for a total of 260 in overcast conditions at Royal Johannesburg and Kensington Golf Club. Pre-tournament favourite Schwartzel, who won the Joburg Open in 2010 and 2011 before relinquishing the title to Branden Grace last year, finished with a 66 for a 267 total over the 6942-metre course.

South Africans Richard Sterne and Trevor Fisher stretched their lead to five shots Saturday after three rounds of the 1.3 million euros ($1.737 million) Joburg Open. They held a three-stroke advantage through the championship at Royal Johannesburg and Kensington Golf Club, which is co-sanctioned by the European Tour and the local Sunshine Tour. Playing together, each fired a third-round 68 to share first place on 196, with compatriots George Coetzee, tournament favourite Charl Schwartzel and Jaco van Zyl as well as Chilean Felipe Aguilar on 201, the nearest challengers.

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Reuters sports schedule at 0001 GMT on Saturday: - - - - NBA Heat host Clippers in possible NBA Finals showdown MIAMI - LeBron James and the defending champion Miami Heat seek their fourth consecutive victory when they host Blake Griffin and the Los Angeles Clippers in a possible NBA Finals preview. (NBA-HEAT/, expect by 0400 GMT/11 PM ET, by Simon Evans, 400 words) - - - - NHL