Collins rallies past Pavlyuchenkova to reach first semi-final

5:01am PST - January 22nd, 2019    danielle collins - Reuters

Danielle Collins overcame a slow start to book a maiden Grand Slam semi-final spot at the Australian Open when the unheralded American rallied from a set down to overcome Russia's Anastasia Pavlyuchenkova 2-6 7-5 6-1 on Tuesday.