From having a leaky defence in the beginning of the season that couldn’t keep a clean sheet, Chelsea now have the most clean sheets in the Premier League.
Ex-Chelsea goalkeeper Mark Schwarzer revealed Chelsea have a great understanding as a defensive unit.
“They just looking very comfortable, defensively they have a great understanding. The formation with Azpilicueta on the right, David Luiz and Gary Cahill as well, I think they have all settled in very nicely,” Schwarzer told Sky Sports.
“Alonso has slotted in very well at left back, the surprise I suppose is Moses at right wing back, but he is able to do that because he has the extra cover.
“Chelsea were not at their best against Boro, but they are comfortable with the system, everyone knows where they are supposed to be. When games are not going to plan, they slot into position and grind out a result.”