The players tried hard. But the results involved luck. Newcastle deserved to get a pen when it was 2:0 and the first goal yesterday involved luck too (there might have been a foul on Alonso and the ball came to Martial after a deflection while Chelsea missed chances to make it 2:0 and then 2:1).
Defence is poor now. 16 conceded goals is a joke. When a Mourinho team crumblesdefensively, the signs are bad. I'd be surprised if he survives Christmas.
Since when luck wasn't part of this sport ? Last I checked almost every football game in the world had percentage of luck in it. Weren't Spurs lucky Lukaku missed an open goal when it was 0-0 ?
Luck is a major part of football.