Belinda Bencic rallied to beat second-seeded Paula Badosa 2-6, 7-6 (2), 6-4 on Friday to advance to the semifinals of the Credit One Charleston Open. No. 4 Ons Jabeur also reached the final four in the season’s opening clay-court event, beating Anhelina Kalinina 6-3, 6-2. Also on to the semis were Ekaterina Alexandrova, a 6-0,…