European number one Justin Rose fired a flawless 65 to claim a share of the lead after the second round of the Nedbank Challenge on Friday as Adam Scott dropped down the leaderboard. Rose, though, who won the Volvo Masters at the start of November to claim his first Order of Merit crown, carded seven birdies and no bogeys over the daunting Gary Player course at Sun City. The Johannesburg-born 27-year-old went to the turn in 34 with birdies at the second and eighth and picked up further shots at the 10th, 11th, 13th, 15th and 18th. On 11 under par he shared the lead with South African Trevor Immelman, who was making the most of his late call-up into the 12-man field. Immelman, who replaced Sergio Garcia at the event, was more inconsistent than Rose but still managed eight birdies and two bogeys to retain a share of the lead. Home favourite Ernie Els, seeking a fourth title, lies three off the pace after a 67 which threatened to be much better. The former Open champion was six under after 13 holes but failed to register any further birdies and bogeyed the 17th to finish eight under. Sweden&aposs Henrik Stenson is a shot further back on seven under with Australian hopeful Scott, joint leader overnight with Immelman, six under after a 71 which saw him drop three shots in the last three holes. Scott&aposs compatriot Geoff Ogilvy also fell off the pace a tad on the second day, posting a one-over 73 to be at two-under for the tournament, four strokes behind Scott. Nedbank Golf Challenge -11 Trevor Immelman 67 66, Justin Rose 68 65 -8 Ernie Els 69 67 -7 Henrik Stenson 72 65 -6 Adam Scott 67 71 -5 Luke Donald 68 71 -2 Geoff Ogilvy 69 73 E Rory Sabbatini 76 68 +1 Stewart Cink 72 73, Retief Goosen 74 71 +2 Niclas Fasth 74 72 +4 Charl Schwartzel 74 74