World No1 Aryna Sabalenka has withdrawn from this year’s Dubai Duty Free Tennis Championships. The Belarusian, who reached her fourth Australian Open final last month, has competed at Dubai’s WTA 1000 event for the past nine consecutive years. Sabalenka, a four-time Grand Slam winner, said: “I’m really sorry I have to withdraw from Dubai. I have such a special connection with the tournament, the fans and the city. Unfortunately, I am not feeling 100 per cent. But I hope to be back next year and wish the tournament a great event.” Iga Swiatek, ranked No2 in the world, has also…