Transfer ANGER: 10 TOXIC moves, including BITTER Arsenal, Chelsea, Liverpool & Man Utd deals

5. William Gallas – Chelsea to Arsenal (2006)

Gallas made the switch to north London as part of the Ashley Cole deal. However, it didn’t come until after pettiness from both sides which included a transfer request and a claim that the Frenchman had threatened to score own goals in order to push through an exit.