Bulawayo, July 1 -- South Africa handed Zimbabwe their heaviest-ever Test defeat today, winning by a massive 328-run margin to take a 1-0 lead in the two-match series. Chasing a daunting 537, Zimbabwe collapsed to 208 all out in their second innings despite a brief fightback from skipper Craig Ervine and all-rounder Wellington Masakadza. The pair added 83 for the seventh wicket, but once that partnership was broken, the end came swiftly. South Africa's Corbin Bosch, who had earlier scored a century, starred with the ball as well, claiming a five-wicket haul, joining the rare club of players to score a hundred and take five wickets in a Test match. South Africa had been in early trouble on the opening day at 23/3, but debutants Dewald Brevi...