Leander Paes and his doubles partner Lukas Dlouhy have entered the pre-quarterfinals of the Australian Open in Melbourne. The Indo-Czech combination defeated the Argentine-Romanian pair of Lucas and Horia Tecau 7-5, 6-3 in a one-sided second round encounter yesterday.Paes-Dlouhy will now meet the American pair of John Isner and Sam Querrey, who defeated Julien Benneteau of France and Steve Darcis of Belgium 6-4, 6-0 in their second round match.