A brilliant all-round performance by Mitchell Starc propelled Australia to series-clinching victory over Pakistan by an innings and 18 runs in the second test as the visitors crumbled under pressure on the fifth day at the Melbourne Cricket Ground on Friday. The rain-interrupted test had long seemed destined for a draw, with only 18 wickets falling in total up until lunch on the last day, but Australia took Pakistan’s final nine wickets in a hurry, clinching the win with an hour to spare.