Paul Dunne keeping up the pressure

Three-time winner Martin Kaymer surged into the halfway lead in the Abu Dhabi HSBC Championship.

Former world number one Kaymer carded a second consecutive 66 to reach 12 under par, a shot ahead of Ryder Cup team-mate Rafa Cabrera Bello.

The two-time major winner lifted the trophy in Abu Dhabi in 2008, 2010 and 2011, but amazingly blew a 10-shot lead in the final round in 2015 and remains without a victory since the 2014 US Open.