The 24-year-old will go up against the Three Lions with his nation in an international friendly at Wembley on Friday.
England have booked their place at the World Cup in Brazil next year, but Sanchez believes that Roy Hodgson's men are lacking a 'tough' edge.
"We are a tougher team than England," Sanchez told The Express. "The problem for teams like England is that everything is so easy for them.
"They join these academies at maybe 10 or 11 years old and everything is done for them. They are so modern and the players are looked after – it is not just England but many European nations.
"I used to wash cars for such little money just so I had enough money to buy my football boots. When you are at academies like Manchester United and Arsenal then everything is just given to you."
England will also take on Germany during the international break.