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|25/1||Italy are 25/1 with William Hill to win the 2014 World Cup
Veteran Antonio Cassano and the internationally inexperienced trio of Alessio Cerci, Ciro Immobile and Lorenzo Insigne the alternatives in attack and the Azzurri will be desperate to ensure Balotelli is fully fit.
Italy team doctor Enrico Castellaci has revealed the former Manchester City man has been struggling with muscle fatigue during the pre-tournament camp in Coverciano, meaning he could potentially be a doubt for the clash with England in Manaus on June 14.
"He's having a few teething problems with his flexors and adductors," Castellaci is quoted as saying by La Gazzetta dello Sport.
"He was struggling a little when he arrived at Coverciano. They've [his muscles] been overworked these last few days and that's affected them."
Balotelli, who struck four times in Italy's World Cup qualifying campaign, scored 18 goals in 41 appearances for Milan in the 2013-14 campaign.