Merit race going to the wire

The Order of Merit race could go right to the wire at Valderrama in Spain on Sunday - and Paul Casey, Padraig Harrington, David Howell and Robert Karlsson all have a chance to end up number one.

It could well be the most exciting end-of-season tussle since Colin Montgomerie pipped Sam Torrance in 1995 with a three-foot par putt on the final green of the final event.