Chelsea moved two points clear of defenders Manchester City at the top of the Premier League table as they overcame Newcastle United to record a 10th straight home league win.
Newcastle midfielder Moussa Sissoko hit the post early on as Chelsea struggled, but a quickly-taken corner afforded Oscar space to score from eight yards to help Jose Mourinho's men take control of the game just before half time.
Diego Costa rounded off a wonderful team move with a low strike to record his 15th league goal of the season as Chelsea side took advantage of City's 1-1 draw at Everton, the BBC reported.
Eden Hazard's clipped cross, collected and flicked in one movement by Oscar for the on-rushing Costa was exquisite and buried low into the bottom corner by the striker.
Chelsea had drawn at Southampton and lost at Tottenham in league games prior to this meeting and they built on a fifth straight home clean sheet to maintain their 100 percent home league record and now no longer rely on goal difference to top the table.
Chelsea's assistant coach Steve Holland said that the team was much better in the second half and controlled the game, playing some good football around Newcastle's box. He added that it is important to still get the result when one doesn't play as well as one would like.
Newcastle caretaker manager John Carver said that it's been a difficult time because of the Christmas period so his side has not had much prep time and this is the first week they have had a full training week and they executed the plan as he wanted.
Carver insisted that he told his squad that he is proud of them.