Results on Wednesday in the ATP tournament in Acapulco, Mexico 2nd rd Felix Auger-Aliassime (CAN x7) bt Sebastian Korda (USA) 6-3, 6-4 Lorenzo Musetti (ITA) bt Frances Tiafoe (USA) 2-6, 6-3, 7-6 (7/1) Grigor Dimitrov (BUL x5) bt Miomir Kecmanovic (SRB) 6-4, 6-2 Dominik Koepfer (GER) bt Milos Raonic (CAN x4) 6-4, 6-2 Casper Ruud (NOR x8) bt Tallon Griekspoor (NED) 4-6, 6-3, 7-6 (7/3) Alexander Zverev (GER x2) bt Laslo Djere (SRB) 6-4, 6-3 afp