Results from WTA Charleston tournament in South Carolina on Wednesday (x denotes seed): 2nd rd Nao Hibino (JPN) bt Francesca Di Lorenzo (USA) 6-4, 6-3 Shelby Rogers (USA x3) bt Claire Liu (USA) 6-2, 6-2 Danka Kovinic (MNE) bt Lauren Davis (USA x7) 6-1, 1-6, 6-3 Clara Tauson (DEN) bt Ajla Tomljanovic (AUS x6) 6-1, 6-4 afp