"But I stayed patient and feel like I got what I deserved on the last for staying so patient and it was nice to finish with a three, leapfrog a few guys and get myself into contention for the weekend".
Sharma, teeing off from the first, ran into early trouble with bogeys on second and third, but a birdie on fifth settled him.
Sharma, who won the Joburg Open last month for his maiden victory outside India as a professional, had four birdies against two bogeys in the second round.
"I hit the ball very well".
Fleetwood, the defending champion and last years European Tour money victor, continued his solid form by hitting all greens in regulation.
The American is now at eight under with birthday boy Tommy Fleetwood - who turned 27 yesterday and played alongside McIlroy and Johnson - at 10 under after his 68. The 40-year-old Englishman re-joined the European Tour towards the end of 2017, having not played for more than two seasons. "A year ago was the first time being here, obviously playing four rounds in the tournament definitely helps", said Johnson. "I played really well from start to finish and felt I did what you need to do round this golf course, which is drive it well". "It would have been nice to go bogey-free again, but it was kind of coming and I hit a awful tee shot". I'm still going to hit it that much further than I guess the average Tour player. "Saturday, is always an important day to stay in it and try and make a move, but I've just got to keep doing the right things". "I never knew I'd get to this point with my golf and it was probably one of the best days of my life", Murphy, who is part of the HSBC Future Falcons programme, told Sky Sports.
"Tommy had one of the best years out of anyone last year. It's not really a debate for me". On the back nine, he found his composure and birdied 10th and 11th and added another on 18th, just like the first day.
"Dustin shot the most stress-free 64 you'll ever see and Rory just shot the most stress-free 66 you'll ever see. And then to throw three wins in there and have a couple of other chances... that was a really, really strong run of golf, and I am looking forward to just keeping that momentum going as soon as possible".