Ted Walsh believes protests around the Grand National will always be part and parcel of the great race.
Animal Rising activists plan to scale the fences and enter the track of Aintree Racecourse before the Grand National race begins, the group has said.
The climate and animal rights group said up to 300 activists will attend the race from 9.30am on Saturday where they intend to prevent the race from starting.
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They will also block traffic by performing a slow march along Ormskirk Road, the main access route.
Walsh famously won the Grand National with Papillon, who was ridden by is son Ruby, in 2000, and says there have incidents around the race since he first attended it.
He told ITV Racing: "You're going to have people who disagree with racing and this is the biggest day in racing so they're going to protest, but it's been going on for the last 50 years, for as long as I can remember.
"We had the bomb scare and we had the animal rights people before and things like that. You have all them and everyone's entitled to their opinion so as long as they don't interfere with the people concerned too much, there'll be no harm."
Walsh will be hoping it will be third time lucky for his runner Any Second Now in the Grand National. The JP McManus-owned runner will carry top weight of 11st 12lb, having finished an unlucky third in the race in 2021 and second to Noble Yeats last year.
The trainer added: "He's in good nick. He likes the place. It lights him up a bit and that's it.
"It's no easy task. Red Rum was the last horse to carry top weight to win it. He's not a Red Rum and he's not a Crisp, but he's a good horse and he likes the place, he's run well in it twice and he'll run well in it again.
"I'll be delighted if he runs as good a race as he ran last year or the year before. Wherever that brings him then, he might be in the first three or four, I think he'll have run a very good race. If he wins, I'd be over the moon, but I'm a realist and I know it's a big task."
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