In my opinion Chelsea is clear favorite of this match and they should win today.

Chelsea have good record at home against West Ham - they won 9 of last 14 Premier League matches at home against them.

This is final match before Christmas time and Chelsea have very good record in such a matches - they lost only once and they made 19 wins in last 30 matches. On the other hand West Ham won before Christmas against Southampton, but never won such a matches twice since 1980.

I see huge difference between both clubs quality in defense and offense. West Ham is not hard to break - they kept clean sheet only 2 times in last 9 matches, against two teams from relegation zone (Sheffield and Fulham). Since October when new goalkeeper Mendy arrived to Stamford Bridge, Chelsea played 14 matches and they kept clean sheet 9 times. This is huge improvement in comparison to previous season or start of the current season. Chelsea as well have much bigger offensive power - Chelsea already scored 5 goals more and have 1.2 shots on target per game more than West Ham. West Ham last round home match against Crystal Palace finished with draw 1:1 and West Ham had problems with creativity - only 0.61 expected goals scored. Chelsea scored at least one goal in 41 of last 50 home Premier League games, 31 times they scored more than one goal. West Ham conceded at least one goal in 40 of last 50 away Premier League matches, 25 times they scored more than one goal. I believe Chelsea have huge chance to score at least one goal today.. Chelsea won 27 of last 38 home matches when they scored at least one goal (14 wins in last 16 such a matches). Chelsea lost last two matches in a row, twice on away against stronger teams than West Ham. They lost 0:1 against Everton by goal from penalty and in last round 1:2 against Wolves by goal in 90+4. That wasn't deserved result - expected goals scored for Chelsea 1.61, for Wolves 0.63. For sure Chelsea wants to bounce back soon as possible and today's game is perfect moment for that.

West Ham lost 9 of last 16 away Premier League matches. Their manager David Moyes have very poor record at Stamford Bridge - he never won Premier League match here (8 losses in 15 matches).

Chelsea average ball possession in current season on 59.6% level, West Ham only have 41%. Chelsea should be able to control middle zone without too many problems and grab 3 points at the end of the day.

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在我看来，切尔西显然是这场比赛的宠儿，他们今天应该会赢。

切尔西在主场对阵西汉姆联的战绩不错——他们在过去14场英超主场对阵西汉姆联的比赛中赢了9场。

这是圣诞节前的最后一场比赛，切尔西在这样的比赛中有很好的记录——他们只输了一场，他们在过去30场比赛中赢了19场。另一方面，西汉姆在圣诞节前赢了南安普敦，但自1980年以来从未赢过两次这样的比赛。

我看到了两家俱乐部在防守和进攻上的巨大差异。西汉姆并不难突破——他们在过去9场比赛中只有2场没有失球，对手是来自降级区的两支球队(谢菲尔德和富勒姆)。自从10月新门将门迪来到斯坦福桥以来，切尔西踢了14场比赛，9次保持零失球。这是一个巨大的进步，相比于前一赛季或本赛季的开始。切尔西也有更强大的进攻力量——切尔西已经比西汉姆多进了5个球，每场有1.2次射正。西汉姆在上一轮主场对阵水晶宫的比赛中以1:1的平局结束，而西汉姆在创造力方面出现了问题——只有0.61个预期进球数。切尔西在过去50场主场英超比赛中有41场至少进一个球，其中31场超过一个球。西汉姆在过去的50场客场比赛中有40场至少丢了一个球，有25次他们进了一个以上的球。我相信切尔西今天至少有很大的机会进一个球。在过去38场主场比赛中，切尔西在至少进一球的情况下赢得了27场胜利(在过去16场这样的比赛中，切尔西赢了14场)。切尔西连续输掉两场比赛，其中两场是客场对阵比西汉姆强的球队。他们在与埃弗顿的比赛中以0比1的罚球落败，上一轮以1比2的比分输给狼队，比分为90+4。这并不是应得的结果——切尔西的预期进球数为1.61，狼队为0.63。可以肯定的是，切尔西希望尽快恢复，今天的比赛是一个完美的时刻。

西汉姆在过去16场客场比赛中输掉了9场。他们的主教练莫耶斯在斯坦福桥的战绩非常糟糕——他从来没有在这里赢过一场英超比赛(15场比赛8场失利)。

切尔西本赛季平均控球率为59.6%，西汉姆只有41%。切尔西应该能够在没有太多问题的情况下控制中区，并拿到3分。