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.

Dubai Duty Free Tennis Championships reveals major expansion plan
Sri Lanka crush Oman for second victory in T20 World Cup
Philippine's rising star Alexandra Eala to debut at Dubai Tennis Open
Messi suffers muscle strain, Miami reschedule preseason finale
Man City and Villa close gap on Arsenal, Liverpool edge Sunderland
