Annis Horribilus for Roy Keane
Ireland don't qualify for the World Cup :( despite his much heralded return and all the wonderful preparation. He gets injured playing against Liverpool. He gets bad publicity for attacking his team mates on Man U TV. Manchester United show him the door. His first game for Celtic ends in defeat by no-hopers Clyde and Celtic are dumped out of the cup.
In the words of D:Ream "Things can only get better".
p.s. He didn't play badly for Celtic and was probably their best player but he never dominated the game as you'd expect.