Belinda Bencic beat Ons Jabeur to claim the first clay court title of her career on Sunday with victory at the WTA Charleston Open in South Carolina. Tenth seed Bencic, the reigning Olympic champion from Switzerland, dug deep to overcome Tunisian fourth seed Jabeur 6-1, 5-7, 6-4 in 2hr 35min. “Many finals we lost now but hopefully it’s going to …