Claudio Ranieri’s side are currently five points clear at the top of the table with nine matches remaining, although Tottenham could cut the gap with a win at Aston Villa on Sunday afternoon.
But Ferguson, who guided Manchester United to 13 Premier League titles during his 27-year reign at Old Trafford, believes Leicester will fight off all challengers this season.
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“Of course they can,” said Ferguson, who was speaking at a Cheltenham Festival preview lunch which the Sunday Times attended.
“I believe they will win it with three games to spare.”