US international midfielder Sacha Kljestan will spend a week training with Celtic.
Celtic’s Derek Riordan may be heading back to Edinburgh, with Hearts understood to be interested in the striker.
Roma midfielder Matteo Brighi has rated his sale as ‘probable’, which may just have alerted one or two admirers at Celtic Park.
Celtic will, according to reports, monitor the progress and displays during Euro 2008 of Austria international Martin Stranzl.
The agent of Aston Villa and Scotland player Shaun Maloney has dismissed reports linking the midfielder with a move back to Celtic.
Zenit St Petersburg star Anatoliy Tymoschuk has confirmed that Celtic manager Gordon Strachan tried to sign him for the Glasgow giants after starring against them whilst playing for Shakhtar Donetsk.