Stenson stretches four shots clear

Globetrotting Henrik Stenson holds a commanding four-stroke lead after two days of the South African Open at Serengeti.

Since the start of last month the 36-year-old former Ryder Cup star has played in Scotland, Portugal, America, China, America again and now South Africa.

But his pursuit of a first win since May 2009 could soon be over after superb rounds of 66 and 65 put him 13 under par at halfway.