The 20 photographs of the week

Romania’s Simona Halep returns to Angelique Kerber of Germany during the women’s semi-final match at the Australian Open tennis tournament. Top seed Halep edged out the former champion, Angelique Kerber, 6-3, 4-6, 9-7 in a match that had everything, match points saved on both sides, incredible athleticism and shot-making and stunning defence.