New York Islanders, 2000/2001
Róbert Petrovický, Branislav Mezei, Zdeno Chára and Juraj Kolník
But only Chara had a strong place on the roster
St. Louis Blues, 2000/2001
There were 5 Slovak players: Pavol Demitra, Ladislav Nagy, Michal Handzuš, Peter Smrek and Jaroslav Obšut
But they all didnt played any game together. Nagy and Handzus were traded to Coyotes and Smrek later to Rangers. Only Demitra played in playoffs. Obsut played only 5 games.
Washington Capitals, 2003/2004
Andrej Podkonický, Ivan Čiernik, Roman Tvrdoň, Rastislav Staňa and Peter Bondra
But also, i dont think, they all played one game together
Los Angeles Kings, 2003/2004
Žigmund Pálffy, Jozef Stümpel, Ľubomír Višňovský and Martin Štrbák