Mourinho looks to maintain impressive record against West Ham; Diego Costa due a goal

Ahead of Chelsea's Premier League clash with West Ham United at Upton Park, we bring you all the best Opta stats.

Following Sunday's League Cup success at Wembley, Chelsea look to continue their bid for a potential treble when they make the trip across the capital to take on West Ham United at Upton Park on Wednesday evening.

Here are the top five statistics from the Blues' upcoming encounter:

1 - West Ham have only won one of their last 10 Premier League matches, while Chelsea are undefeated in their last six. The Blues have lost just two of their last 16 English top-flight away matches and have scored at least twice in their last three on the road.

 2014/15 Home Form AppearancesWonDrawnLostPoints
West Ham 14 7 3 4 24
 2014/15 Away Form AppearancesWonDrawnLostPoints
Chelsea 13 7 4 2 25

6 - Jose Mourinho has a record of six wins and no defeats in seven Barclays Premier League matches as a coach against West Ham. Meanwhile, Chelsea have won 13 and lost just one of the last 17 domestic fixtures against the Hammers.

5 - West Ham have failed to score in five of their last six Premier League matches against Chelsea, including the last four in a row. Sam Allardyce's team failed to muster a single shot on target when they travelled to Stamford Bridge in the reverse fixture on Boxing Day.

9 - Diafra Sakho is West Ham’s leading scorer in the Premier League with nine goals, while Chelsea’s Diego Costa has almost double the Senegalese international's total (17). Following a three-match suspension and a goalless afternoon against Burnley, the Spaniard hasn't scored since January in the league for the visitors. 

  TeamAppearancesGoalsGoal Assist
Diego Costa Chelsea 20 17 2
Eden Hazard Chelsea 26 9 6
Diafra Sakho West Ham 18 9 2
Oscar Chelsea 21 6 7
Andy Carroll West Ham 14 5 1

30 - Chelsea's defenders have contributed 17 goals and 13 assists in all competitions this season. Branislav Ivanovic has scored in four of his last seven appearances in all competitions, and three in his last five.

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