Croat Marin Cilic and Italian Andreas Seppi earned wins in lengthy matches Friday, leaving Croatia and Italy tied 1-1 in a Davis Cup best-of-five series.
Swiss Stanislas Wawrinka advanced but American James Blake was eliminated Monday in the first round of the $3.645 million Italian Masters in Rome.
World No. 1 superstar Rafael Nadal and U.S. Open runner-up Andy Murray were third-round winners Monday at the Sony Ericsson Open in Miami.
Novak Djokovic and Andy Roddick had second-round victories Tuesday at the $2.6 million Rogers Masters in Toronto.
Switzerland's top-seeded Stanislas Wawrinka made it to the semifinals but No. 3 Mikhail Youzhny was toppled Friday in the Swiss Open clay-court tournament.
Former World No. 1 Marat Safin of Russia and Richard Gasquet of France were upset Monday in the first round of the $3.5 million Italian Masters.
Native Croat Ivan Ljubicic was among Wednesday's winners in the men's PBZ Zagreb Indoors tennis tournament.
No. 1 seed Novak Djokovic Wednesday trounced qualifier Ivan Dodig, 6-1, 6-4 in the second round of the Open 13 tennis tournament in Marseilles, France.