MANCHESTER, England (AP) — Leicester stunned Manchester City 3-1 on Saturday to bolster its bid to become the unlikeliest champions in English football history. Leicester, which was fighting relegation from the Premier League a year ago, is now six points clear of second-place City following an unexpectedly easy win at the home of the 2012 and 2014 champions. Leicester wasn’t even reliant on top-scorer Jamie Vardy. Defender Robert Huth scored inside three minutes and again on the hour after Riyad Mahrez netted at the start of the second half. Sergio Aguero claimed a late consolation. Leicester has never won the top flight and its squad wasn’t assembled by spending hundreds of millions of pounds like City. While quadruple-chasing City also remains in both domestic cup competitions and the Champions League, Leicester’s only focus is the league. City had hoped to pull level with Claudio Ranieri’s men at the top of the table but instead ended the day trailing them by six points. This was City’s first home game since the announcement that Pellegrini was leaving at the end of the season and being replaced by outgoing Bayern Munich coach Pep Guardiola. Leicester’s display — loaded with speed and energy —…