MAIL – Crossing the divide: Ten controversial deals between rival clubs which shocked fans

Jack Colback’s decision to leave Sunderland and join Newcastle has not gone down well at the Stadium of Light. Sunderland claimed the move left ‘a bitter taste’ because they had developed the 24-year-old since he was eight years old. Colback, however, is not the first player to infuriate a club by signing for their arch rivals. Here Sportsmail looks at 10 other players who caused controversy.