<p>Left-hander Sean Williams scored a brilliant century to help Zimbabwe post 278-6 after Pakistan's paceman Mohammad Hasnain took a maiden five-wicket haul in the third and final one-day international in Rawalpindi on Tuesday.</p>.<p>Williams made an unbeaten 135-ball 118 for his fourth ODI hundred to lift Zimbabwe from a precarious 22-3 after they won the toss and batted on a flat Rawalpindi stadium pitch.</p>.<p>Pakistan lead the three-match series 2-0 after winning the first match by 26 runs and the second by six wickets, also at the same venue.</p>.<p>It was 20-year-old paceman Hasnain who shook the tourists by removing Zimbabwe skipper Chamu Chibhabha (nought), Craig Ervine (one) and Brian Chari (nine) in his first four overs of hostile fast bowling.</p>.<p>Williams added an invaluable 84 runs for the fourth wicket with Brendon Taylor (56) and another 75 for the fifth with Wesley Madhevere (33) to stage a fightback.</p>.<p>Dropped thrice on 73, 75 and 81, Williams finally reached his hundred with a couple off paceman Wahab Riaz, much to the jubilation of the Zimbabwe dressing room.</p>.<p>He hit 13 boundaries and a six in his knock.</p>.<p>Taylor, who scored a century in the first game on Friday, hit eight boundaries before falling to a miscued cut off Hasnain.</p>.<p>Hasnain, who had five wickets in his first five matches, had Madhevere caught off his own bowling to improve on his previous best of 2-52 against Australia in Dubai last year.</p>.<p>Williams and Sikander Raza -- who made a 36-ball 45 -- cut loose in the final overs adding 96 runs for sixth wicket, piling on 46 in the last five overs.</p>
<p>Left-hander Sean Williams scored a brilliant century to help Zimbabwe post 278-6 after Pakistan's paceman Mohammad Hasnain took a maiden five-wicket haul in the third and final one-day international in Rawalpindi on Tuesday.</p>.<p>Williams made an unbeaten 135-ball 118 for his fourth ODI hundred to lift Zimbabwe from a precarious 22-3 after they won the toss and batted on a flat Rawalpindi stadium pitch.</p>.<p>Pakistan lead the three-match series 2-0 after winning the first match by 26 runs and the second by six wickets, also at the same venue.</p>.<p>It was 20-year-old paceman Hasnain who shook the tourists by removing Zimbabwe skipper Chamu Chibhabha (nought), Craig Ervine (one) and Brian Chari (nine) in his first four overs of hostile fast bowling.</p>.<p>Williams added an invaluable 84 runs for the fourth wicket with Brendon Taylor (56) and another 75 for the fifth with Wesley Madhevere (33) to stage a fightback.</p>.<p>Dropped thrice on 73, 75 and 81, Williams finally reached his hundred with a couple off paceman Wahab Riaz, much to the jubilation of the Zimbabwe dressing room.</p>.<p>He hit 13 boundaries and a six in his knock.</p>.<p>Taylor, who scored a century in the first game on Friday, hit eight boundaries before falling to a miscued cut off Hasnain.</p>.<p>Hasnain, who had five wickets in his first five matches, had Madhevere caught off his own bowling to improve on his previous best of 2-52 against Australia in Dubai last year.</p>.<p>Williams and Sikander Raza -- who made a 36-ball 45 -- cut loose in the final overs adding 96 runs for sixth wicket, piling on 46 in the last five overs.</p>