West Indies struck 99 for one in 23 overs before tea on the fourth day of the third Test as it chased a huge target of 475 to win following Australia's second innings declaration. The tourists declared at 439-5 at lunch and with five sessions and 150 overs to dismiss the home batting lineup, Australia captain Ricky Ponting will be backing his bowlers to secure a 2-0 series victory. There was little indication that the home side was battening down the hatches to play for a draw as opening pair Xavier Marshall and captain Chris Gayle rode their luck to put 50 on inside 11 overs. Marshall was dropped by Simon Katich in the slips off Brett Lee and then Beau Casson dropped Gayle before wicketkeeper Brad Haddin failed to hold on to an edge from Marshall. Gayle was also close to being run out but his good fortune ended when he holed out to Brett Lee off Stuart Clark - a woeful shot from the skipper who dragged a ball from outside off stump over to mid-on. Marshall was joined by Ramnaresh Sarwan and the pair put on 35 before tea with the opener on 42 not out and Sarwan on 18. Australia may need only nine wickets to win as West Indies is likely to be without batsman Sewnarine Chattergoon who suffered a badly sprained ankle while fielding Saturday. Chattergoon can only walk with the aid of a support stick and did not field Sunday. Australia's morning session was enough to give it a massive lead after it had dominated Saturday's play. The tourists lost century-maker Simon Katich early after the left-hander added just nine runs to his overnight score of 148. Sulieman Benn finally got rid off Katich, after 488 minutes at the crease, for 157, with substitute Darren Sammy taking a catch at short extra-cover. Benn struck again to get rid of Andrew Symonds for two, the all-rounder driving a well-flighted delivery to Shivnarine Chanderpaul at cover. But then Michael Clarke (48) and Haddin (45) continued the Australian advance, adding 79 before lunch. West Indies would need to break its own record of 418, the highest fourth innings total to win a Test match - set in Antigua against Australia in 2003. – Reuters __