BRISBANE (Agencies) - Australia and England's battle for supremacy in this one-day International series will take on a more poignant edge with the return of the two sides to Brisbane for the fifth installment of the contest. Clarke will lead Australia today (Sunday) at the Gabba, determined to wrap up the one-day series against England with game five doubling as a fundraiser for Queensland's flood victims. But while the significance of the occasion is not lost on Clarke, the Test deputy is equally mindful of the need to lift his game with the World Cup on the horizon. Clarke has had a wretched one-day series, having scored 70 runs from four innings at 17.50. Such is his desire to break the shackles, the 29-year-old explored the option of leaving the Australian team to restore confidence with his grade side, Western Suburbs. Coach Tim Nielsen and the selectors considered the request, but believed the Test captain-in-waiting would be better served on international duty. "I mentioned it the other day to the coach and the selectors," Clarke said as his side eyes a series-clinching victory today in Brisbane. "We were batting in club cricket (yesterday) for Wests and I said 'I'm keen to go back to Sydney and have a hit there'. "But they thought it was better preparation for me to be with the team, which I agree with. "Any opportunity I get to play cricket now, I'll be grabbing with both hands. If a game does come up for NSW or my grade club and it fits in with the team, I'll certainly be playing." Clarke is desperately craving a big score. His recent Ashes series proved just as sparse as his one-day returns, with Clarke managing 193 runs at 21.44 with a top score of 80. Some critics believe the under-fire No.4 needs time out of the game urgently, to get his groove back. Clarke could not disagree more. "Everyone is different," he said. "Some players, when they aren't doing as well as they'd like, would like some time away from the game, but I don't think that's me. It's about continuing to work my backside off and making sure my preparation is done so that I have the confidence to play this great game and not worry about too many things. "The reason I play this game is because I love it and I don't want that to change." The Australians have yet to finalise their XI, although paceman Mitchell Johnson is available for selection after overcoming a throat infection. Clarke said his side was eager to win the series for the Queensland people after the Australian side saw first-hand the devastation of the floods when they visited school kids in Moorooka and Goodna on Friday. "It's a very special game for us tomorrow. There's obviously going to be some emotions flying," he said. "We have even more reason for this game for people to come and watch and the donations that will go on around the group.