West Ham is currently sitting in the 17th position in the Premier League table with only 13 points. They are close to the relegation zone with only 3 points more than Norwich City. All teams have played their 13th games this season, and with 13 points in 13 games, that mount to one point in every game.
Manuel Pellegrini future in West Ham United is uncertain as the pressure on him increases every day,and it is likely he gets sacked if this continues. David Moyes is likely to be next West Ham coach if Pelligrini is being sacked. However, it seems the management may consider more time for him. The next West Ham Premier league game is another tough one for him as he faces Chelsea.
Chelsea has been consistent in their title chase, but it doesn't seem they would get beaten by a struggling team now. Frank Lampard worked with Pelligrini at Manchester City, and he might know the style of Pelligrini. In short, they will both be out with the intent for victory.