Thomas Björn gave McIlroy a timely reminder of what happened five months ago after joining Rory in the halfway lead at the Dubai Desert Classic.
US Open Champion McIlroy justified his position after entering the tournament as favourite by adding a 65 to his first round 66 to reach 13 under par.
Bjorn has matched him shot-for-shot so far and now finds himself in a battle with not only the World Number Two, but also with Westwood and Kaymer who are lurking right behind him and ready to pounce.
Kaymer had the first hole-in-one of his life, (yes life) on the 186 yard seventh as he reached 11 under with a 67, while Lee Westwood‘s 65 for ten under included birdies on the last three holes.
All is set for a another great weekend in Dubai which always seems to have an exciting finish!
