Doubles specialists Frantisek Cermak and Michal Mertinak, both coming off tournament titles, were suspended Monday by the ATP for betting on tennis matches.
Mario Ancic beat Michal Mertinak of Slovakia to give Croatia its first Davis Cup title.
Ivan Ljubicic and Mario Ancic won Saturday's doubles in straight sets to put Croatia ahead 2-1 against Slovakia and one win away from its first Davis Cup title.
Michal Mertinak and Karol Beck beat David Nalbandian and Mariano Puerta 7-6, 7-5, 7-6 to put Slovakia 2-1 up against Argentina in their Davis Cup semifinal.
Top-seeded Nikolay Davydenko beat Michal Mertinak 6-3, 6-2 Monday, while Argentina's Jose Acasuso ousted No. 3 Igor Andreev in the first round of the BTM Power Grand Prix.
Defending champion Spain was eliminated from the Davis Cup on Saturday when Slovakia took an insurmountable 3-0 following a doubles victory.
Brian Vahaly snapped a seven-match losing streak Wednesday, beating Michal Mertinak 6-2, 6-2 to advance to the second round of the Hall of Fame Tournament.