ST GEORGE’S, Grenada – A typically audacious half-century from captain Kieron Pollard, coupled with a career-best four-wicket haul from veteran Dwayne Bravo, propelled West Indies to a critical 21-run, series-levelling victory in the fourth Twenty20 International on Thursday.Tottering on 101 for six in the 16th over after batting first for the first time in the five-match series, West Indies recovered to reach 167 for six off their 20 overs, courtesy of Man-of-the-Match Pollard’s unbeaten 51 off just 25 deliveries.