Even if the contracts apply to different times? Also don't think the agreement is formal or written.
http://sports.yahoo.com/nhl/blog/pu...he-new-nhlkhl-player-agreement?urn=nhl,wp8892
It's formal and written down.
Legally enforceable? Probably not, but I don't think either league wants a war.
(even if the NHL could be ****** at this point and leverage the ruble crisis to bankrupt the KHL .... just sayin' )