England goalkeeper Fraser Forster does not know if he will still be at Celtic when they next play in Europe.
Norwich captain Sebastien Bassong has signed a new two-and-a-half-year contract.
Stanislav Griga and Michal Hipp have been appointed joint-coaches of the Slovakian national side.
The Slovakian Football Federation made the move on Thursday after failing to secure the release of Czech Pavel Vrba from Viktoria Plzen.
Griga, 50, and Hipp, 49, who succeed Vladimir Weiss following his departure in January, have signed 20-month contracts and will lead the team in qualifying for the 2014 World Cup.
Slovakia have been drawn in Group G alongside Greece, Bosnia-Herzegovina, Lithuania, Latvia and Liechtenstein.