Top seed Ons Jabeur and Olympic champion Belinda Bencic reached the final of the Berlin grass court tournament in contrasting style in sweltering heat on Saturday. World number four Jabeur ousted French Open finalist Coco Gauff 7-6 (7-4), 6-2, while Bencic needed more than three hours to edge second seed Maria Sakkari 6-7, (6-8), 6-4, 6-4 for a second straight appearance in the final. American teenager Gauff gave Jabeur a big fight in the first set where she had raced off to a 3-0 lead. But Jabeur rallied to 3-3 and proved stronger in the tiebreak. The Tunisian kept up the momentum for a 3-0 l…