Westham's night started well, but ended in a nightmare. When the score was 1-5 in the 59th minute, fans began to leave the stadium.
When Chelsea scored the fourth goal, some fans started to leave, but the fifth goal saw even more fans leave.
Chelsea, with their new signings, have become a fantastic team. They couldn't beat Palace last week, but this week they defeated Westham by a landslide.
The Premier League will be of higher quality this year. There are four or five teams that can compete for the top spot. Chelsea will be even better.