After a disastrous season opening, Chelsea delivered a more characteristic display to seal a much-needed 2-0 win over Arsenal at Stamford Bridge on Saturday. Their aggressiveness seemed to be rediscovered, the defensive shape was improved and the tactics were efficient. On top of that, a bit of skullduggery from Diego Costa tipped the game in their favour.
The postmatch debate would always centre on Gabriel's dismissal just before half-time, but beyond the controversy, subtle tactical factors proved...
