TEAM NEWS:

Chelsea playmaker Eden Hazard will be out for up to four weeks with a hip problem, according to his national coach Marc Wilmots.
Diego Costa is suspended after his red card in the FA Cup defeat last weekend.
West Ham remain without James Tomkins and James Collins because of calf and hamstring injuries respectively.
On-loan winger Victor Moses is ineligible to face his parent club, but Sam Byram is available after being cup-tied last week.

MOTD COMMENTATOR'S NOTES:

Simon Brotherton: "Claudio Ranieri is a shoo-in for manager of the year, but Slaven Bilic should be on the podium too, with West Ham now genuine contenders for Champions League football.
"They're only a couple of points behind Manchester City and have only lost two of the last 16 league games.
"This looks a good time for the Hammers to go to Stamford Bridge, with Chelsea hardly on the crest of a wave after being knocked out of both the
Champions League and FA Cup in their last two matches.
"Guus Hiddink has steadied the ship well, and they remain undefeated in the Premier League since his return, but too many draws have limited their progress up the table."
Twitter: @SimonBrotherton


WHAT THE MANAGERS SAY:

Chelsea manager Guus Hiddink: "I expect a tough match because they are doing very well at home and away.
"They are a courageous team who are fast on the counter attack. They have skilful players, they are a nice team to watch.
"They are in the mood in fifth position, not just dreaming but maybe making fourth place come true. They've shown they can play and they have players who can be decisive at any minute."
West Ham manager Slaven Bilic: "Chelsea are thinking there's nine games to go and if they click they can finish very, very high also.
"In that sense it's not a great time [to play them] because now they have only Premier League. Make no mistake - I'm expecting them to be really hungry and totally focused on the Premier League."

MATCH FACTS:

Head-to-head:

West Ham have won just one of their last six meetings with Chelsea (D1, L4) - but that came in the most recent clash, a 2-1 victory at Upton Park in October. Nemanja Matic and then-Chelsea manager Jose Mourinho were sent off in that game.
Chelsea are unbeaten the last nine times they have hosted West Ham in the Premier League (W7, D2).
Chelsea:

Chelsea are unbeaten in their last 13 Premier League matches, the best current run in the top flight. They have not lost in the competition in Guus Hiddink's second spell at the club.
The Blues have drawn five of their last six home games in the league, keeping a clean sheet in only one of those matches.
Only Everton and Manchester City have scored more than Chelsea's 27 home goals in this season's Premier League.
Chelsea are the only team in the Premier League not to concede a goal inside the opening 15 minutes of a match this season.
West Ham
West Ham have won their last three Premier League matches. The last time they won four in a row in the league was in February 2014.
The Hammers have scored more goals away from home than at Upton Park this season.
They have scored three goals in a game on five occasions in this season's Premier League: four of those have come on the road, including last time at Everton.
Dimitri Payet has five goals and five assists in his last seven competitive appearances for West Ham United.