Chelsea cruise to five-goal win; Pool and United also record victories

Diego Costa took his top-flight tally for the season to 17 as Chelsea extended their Barclays Premier League lead to five points with a crushing 5-0 win over Swansea at the Liberty Stadium.

Costa and Oscar each helped themselves to a first-half brace as the home side made a shocking start to life without their £25m front man Wilfried Bony.