Source: Daily_Mail
Sunderland on alert as Gordon Strachan walks out on Celtic
Gordon Strachan has resigned after four years in charge at Celtic.
The Scot, who is a frontrunner for the vacant Sunderland job, told Parkhead chief executive Peter Lawwell he was walking out just a day after losing the Scottish Premier League title to Rangers.
He said: 'I have enjoyed my time immensely at Celtic and clearly I will be sad to leave this great club.'
