Paddy Power, Ireland's largest bookmakers, have lengthened their odds on the Republic of Ireland from 66-1 to 80-1 to win the World Cup following Roy Keane's dismissal from the squad.
The Tallaght-based firm have lengthened the group winners price from 10-3 to 4-1 and the qualifying price from 8-11 to evens.
English bookmakers William Hill have lengthened Ireland's odds from 80-1 to 100-1.
They have also extended their price to beat Cameroon in their opening game from 13-8 to 15-8, shortening Cameroon from 11-8 to 5-4.
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Hills have also lengthened Ireland's Group winning odds from 7-2 to 9-2.