Miss Andrade, who narrowly missed out on the Miss World finals after being chosen as her nation's most beautiful woman in July last year, said the footballer sent her a WhatsApp message out of the blue just after she won Miss Chile.
She revealed: ‘I was with an ex-boyfriend when he sent his first message.
‘I'd never met him in my life so when he said he was Alexis Sanchez, I replied saying: “No, you're lying, you know what, Ciao.”
‘He responded by phoning me straight away. I didn't answer him. I rejected the call.
‘Why am I going to answer him if I don't know him? And then he sent me a message saying I phoned you so you'd know it was me.'
She added: ‘I've no idea how he got my number but he did what a lot of footballers like him do which is to speak to girls via WhatsApp.
‘I don't want to go into so much detail, but I have to say he seemed very kind and very funny.
‘It makes me laugh how all the young girls speak to him. I could never ever have taken seriously some of the things he said to me.
‘We never had regular conversations but I stopped answering him about two months ago after I turned down his meal invite.
‘I found it tasteless he'd ask me out while he was with someone else so I gave him the red card.
‘When someone doesn't answer you, I think the other person normally gets it and understands that you don't want to speak with them.
‘Nothing happened between Alexis and me and I'm doing nothing wrong by revealing how he's been messaging me.
‘But if I had said “yes” that time he phoned me and invited me out for a meal, I can assure you nobody would have found out.'
Sanchez has not yet responded to a request for comment.
