Tennis - Mertens stuns Svitolina to reach Melbourne semis

Tennis - Australian Open - Rod Laver Arena, Melbourne, Australia, January 23, 2018. Elise Mertens of Belgium hits a shot against Elina Svitolina of Ukraine. REUTERS/Issei Kato

MELBOURNE (Reuters) - (This Jan 22 story has been refiled to make clear Clijsters did not win title in 2012.)

Elise Mertens produced another huge upset in a tournament littered with them when she thrashed fourth seed Elina Svitolina 6-4 6-0 to reach the semi-finals of the Australian Open at the first attempt on Tuesday.