Chelsea returned to Premier League action at Stamford Bridge with a 4-1 win against Cardiff City on Saturday. Away fixtures and the international break meant that this was the first game for almost a month in front of the home crowd, and it took a shaky start to fire them into action.
Cardiff were hassling the Blues as soon as the whistle blew and refused to give up any space. They were rewarded after 10 minutes when a lack of communication between Ramires, David Luiz and Petr Cech allowed Jordon Mutch to steal in and score the opener.
The Blues were level after half an hour under controversial circumstances. David Marshall was bouncing the ball in preparation for a clearance when Samuel Eto'o nipped in and took it past him. The Cameroonian veteran opted to pass rather than shoot, and Eden Hazard was on hand to follow up with a low strike into the bottom corner.
Jose Mourinho waited until mid-way through the second half to make his changes, bringing on Fernando Torres for Ryan Bertrand in a similar tactical switch to the one at Norwich City. It paid off again as Eto'o scored his first Chelsea goal from a Hazard assist. Oscar then scored a trademark beauty from 25 yards before Hazard got his second of the game to complete the rout.
Here are six things we learned from Mourinho's 64th Premier League victory at Stamford Bridge.