Rafael Nadal hoping to play Australian Open after hip issue in BrisbaneBy Eleanor Crooks, PA Tennis CorrespondentRafael Nadal is keeping his fingers crossed he will be able to play in the Australian Open after needing medical treatment during a gruelling loss to Jordan Thompson at his comeback tournament. Nadal looked poised to claim another straight-sets win at the Brisbane International when he brought up a first match point in the 10th game of the second set but missed a backhand overhead. The 37-year-old had surgery on the psoas tendon in his left hip in June after being sidelined since suffering an injury at last January’s Australian Open and revealed the latest problem is in the same area. Honestly, I am not 100 per cent sure of anything now.”Thompson will take on second seed Grigor Dimitrov in the semi-finals, while top seed Holger Rune faces Russian Roman Safiullin. At the ASB Classic in Auckland, defending champion Coco Gauff and second seed Elina Svitolina both eased into the semi-finals, while Alexander Zverev defeated Stefanos Tsitsipas to help Germany defeat Greece in the United Cup quarter-finals.