Gayle in doubt for Sydney ODI Big-hitting West Indies opener Chris Gayle will be given as much time as possible to prove his fitness for Friday's one-day cricket international against Australia after suffering a side strain. Australia also have an injury concern going into the SCG clash, with in-form batsman George Bailey suffering some hamstring tightness. WA captain Adam Voges was added to the squad as cover and pulled out of the final day of the Warriors Shield game against Queensland in Brisbane. Both Gayle and Bailey will be given until the day to prove their fitness before game four of a five-match series which Australia leads 3-0. Gayle was hurt while fielding in Australia's innings during the West Indies' 39-run loss in Canberra on Wednesday. While he still bowled five overs, he spent time off the ground and batted at No.5 instead of opening. Gayle, who has scored just 10 runs in three innings in the series, underwent a scan early on Thursday before the team flew to Sydney. "A scan has revealed no major damage and a game-time decision will be made tomorrow on whether or not he will be able to play," said West Indies corporate communications officer Philip Spooner. He will do a fitness test tomorrow. Voges played the last of his 15 one-day internationals two years ago against England in Perth. However, team officials reported Bailey, who has scored 125 not out and 44 in his two innings in the series, was walking more freely on Thursday. Coach Mickey Arthur was adamant Australia would not ease up now the series had been won. He viewed the two remaining matches as a chance to put a successful shine on a season, which has included a drawn five-match one-day series with Sri Lanka. "It's been a tough old summer for us in terms of our one-day cricket - we are a little bit topsy-turvey," Arthur said. We've got some good momentum now, so we're certainly not going to take our foot off the pedal at all. We want to win the series 5-0. Arthur was unimpressed with the actions of young allrounder James Faulkner, who was fined 10 per cent of his match fee for yelling an obscenity at Gayle after bowling him in Canberra. "I think he crossed the limit yesterday," Arthur said. It's certainly something that we don't accept in our team. He'll learn from it and move forward.