I think due to Chelsea's record and strong defence, the match had to be won 3-1. Chelsea has played in draws and defeats due to poor performance in these 5 matches, its record and style of play was going quite well, which used to make a list of wins, but after playing a few matches weakly, it made a win after that Which won with 3 goals.This is why Chelsea spoil themselves, sometimes inside the standings and sometimes outside, mainly because they win a few matches and play poorly. They should play every match with good performance and hard work, this will keep their record and performance strong which will benefit them for a long time. Chelsea is a very hardworking team, they improve themselves quickly, if they don't have bad games in their record, they are capable of winning the title.
Chelsea are trying to embark their performances to normal one like the way their performing before, but due to their inconsistency they still never come back to there normally form even that there last match against the wolves is because the team is know long strong that’s they are able to won them 3-1; if not all this while that they where meet with strong teams they find it very difficult to win.
That’s the main problem that the Chelsea team are facing all this while, if they make themselves clear and make their performances strong instead of them to keep it up and be maintained their consistency against every of their opponents, but they will not that’s why when they perform good for the main time there performances will later turned to the poorly performing.