Harrington vows to fight for Order of Merit title

Padraig Harrington has paid tribute to his Ryder Cup partner Karlsson, but warned he has not given up hope of a second Order of Merit title.

Harrington, winner of back-to-back majors in the Open Championship and USPGA Championship this season, lies second on the money list as he seeks to regain the title he won in 2006 when the season-ending Volvo Masters under way on Thursday.