Paul Nicholls insists he will not give up his trainers’ title without a fight ahead of what promises to be a pivotal Scottish Grand National meeting at Ayr this weekend.

After claiming his second victory in the Randox Grand National at Aintree on Saturday with I Am Maximus, Willie Mullins is now odds-on with bookmakers to become the first Irish-based trainer to claim the British championship since Vincent O’Brien did so in successive years in the 1950s.