World No 1 Ash Barty celebrated her birthday weekend by winning two titles – and a brand new sports car – at the Porsche Tennis Grand Prix in Stuttgart after a third consecutive comeback triumph in the singles final against Aryna Sabalenka. To complete another landmark week, the Australian, who turned 25 on Saturday, then won the doubles title on a busy, fun – and lucrative – Sunday with her American partner Jennifer Brady. After her singles win, Barty was presented with her €68,570 ($107,074) winner’s cheque and a brand new Porsche, which seemed perfectly appropriate for someone who had accelerated away majestically after an early test from Sabalenka.