Photo: Reuters Another Australian Open and another lackluster performance from Croatia's tennis players. Ivan Ljubičić, seeded at #28 for the Aussie Open, fell to Slovak qualifier Lukas Lacko in five sets during first round play while Ivan Dodig was forced to retire early due to injury after taking the first set from Portugal's Frederico Gil, also in the first round. That … [Read more...] about Karlović Serve No Problem for Federer