England and Australia, both unbeaten in the tournament, face off in the Under-19 World Cup semi-final. England won the toss and opted to bat first at the Queens Sports Club in Bulawayo. The match is underway, with England's Ben Dawkins and Joe Moores at the crease. England, too, cruised through their group spotlessly - including posting 404 against Scotland - and then beat Bangladesh and New Zealand in the next round. However, an inferior net run-rate to India saw them finish second in the Super Sixes. But England do have an advantage. Their last two wins were in Bulawayo, the venue for the semi-final, while it will be Australia's first game here. The winner will face one of India or Afghanistan in the final. Here are the key players to watch in the England vs Australia Under-19 World Cup semi-final: Ben Mayes (England): Top scorer with impressive knocks against Scotland, Zimbabwe, and New Zealand. Nitesh Samuel (Australia): Consistent opener with low dismissal rate. Oliver Peake (Australia): Formed captain with a century against West Indies. Charles Lachmund (Australia): Menacing new-ball bowler. Will Byrom (Australia): Destructive bowler with a five-wicket haul against Sri Lanka. Manny Lumsden (England): Effective seamer averaging 9.30 with the ball. Lumsden is the joint-highest wicket-taker (13) of the tournament. Lachmund is just one behind. A win will put Australia one step closer to defending their title. Only Pakistan (2004 and 2006) have defended a men's U19 World Cup title before England are looking to make their third final. Australia their seventh The toss should not be a major factor - the split is 4-4 among teams batting first and second in Bulawayo in this World Cup.