BRIDGETOWN, MARCH 29: Courtney Walsh claimed another five-wicket haul to keep alive West Indies's hopes of an improbable win over Australia in the third Test today.Big-hearted performances by Walsh and fellow paceman Curtly Ambrose led to the Australians being dismissed for 146 in their second innings, leaving West Indies a victory target of 308 with four sessions of the match remaining.It would have been much worse for the Australians but for Ricky Ponting and Shane Warne. They gave the innings a badly needed fillip with a stand of 53 the highest of the innings after Ian Healy had been dismissed in the first over after lunch to leave his side embarrassingly placed at 81 for seven, 242 ahead.Warne's 32, which included three thumping fours through mid wicket, was the highest score of the innings.After breaking the stand by trapping Warne leg before, Walsh went on to dismiss Stuart MacGill and Ponting (22) to finish with five for 39. He has taken 21 wickets in the series.Earlier on Monday, the28-year-old Sherwin Campbell and wicket-keeper Ridley Jacobs (68: 126b, 167m, 9x4) shared a seventh wicket stand for 153 as the West Indies fought back to avoid the follow-on.Campbell's third Test century was well-compiled as the diminutive Barbadian brought up his half century off 162 balls in 239 minutes with his sixth and seventh boundaries in one over from leg-spinner Warne. He got better after that. His next fifty took him just 78 deliveries, and he added eight more boundaries.ScoreboardAustralia (1st innings): 490West Indies (1st innings, overnight 80-4): S Campbell c S Waugh b Gillespie 105, A Griffith run out 0, D Joseph lbw McGrath 26, P Collins lbw McGrath 0, B Lara c Healy b Gillespie 8, C Hooper c Warne b McGrath 25, J Adams c M Waugh b McGrath 0, R Jacobs c M Waugh b Ponting 68, N Perry lbw Gillespie 24, C Ambrose not out 28, C Walsh c Slater b Warne 12. Extras: (b10, lb3, nb20) 33. Total: (all out in 103.5 overs) 329Fall of wickets: 1-1, 2-50, 3-50,4-64, 5-98, 6-98, 7-251, 8-265, 9-291Bowling: McGrath 33-5-128-4 (nb14), Gillespie 28-14-48-3 (nb3), Warne 15.5-2-70-1 (nb1), MacGill 20-5-47-0 (nb2), Ponting 4-1-12-1, M Waugh 3-0-11-0. Australia (2nd innings; overnight 18-2): M Elliott c Jacobs b Walsh 0, M Slater run out 26, J Langer lbw b Ambrose 1, J Gillespie b Ambrose 14, M Waugh lbw b Walsh 3, S Waugh b Collins 11, R Ponting c Griffith b Walsh 22, I Healy c Jacobs b Collins 3, S Warne lbw b Walsh 32, S MacGill c Campbell b Walsh 1, G McGrath not out 8; Extras: (lb5, w1, nb19) 25. Total: (all out in 50.1 overs) 146Fall of wickets: 1-0, 2-12, 3-35, 4-46, 5-48, 6-73, 7-81, -134, 9-137Bowling: Walsh 17.1-3-39-5 (nb6), Ambrose 20-2-60-2 (nb8), Collins 9-0-31-2 (nb4, w1), Perry 4-0-11-0 (nb1).