Three-time Abu Dhabi HSBC Golf Championship winner Martin Kaymer is tied for the lead at the halfway stage of the Memorial Tournament.
The German is on nine under par alongside Troy Merrit and Lee Kyoung-hoon.
The trio are a shot ahead of Jordan Spieth.
Meanwhile two time Omega Dubai Desert Classic winner Tiger Woods is seven shots off the lead.

Norris takes F1 title as Verstappen wins Abu Dhabi race
Neser fires Australia to eight-wicket win in second Ashes test
Denmark's Neergaard-Petersen holds nerve to claim Australian Open title
Nissanka’s half-century guides Gulf Giants to four-wicket win over Dubai Capitals
Salah slams Liverpool for 'throwing him under the bus'
