Grand National hat-trick still on Tiger Roll agenda

Tiger Roll remains on course to bid for a historic third successive win in the Randox Health Grand National at Aintree despite a recent setback.

The nine-year-old underwent a procedure to remove a chip in a joint earlier this month and is currently on box rest, but trainer Gordon Elliott is confident his star will attempt to join Red Rum as a triple winner of the extended four-and-a-quarter-mile event.