Celtic target Nikolas Polster could stay at Wolfsberger, despite seemingly being set to leave earlier in the summer. As we near the final month of the summer transfer window, Celtic are still in the hunt for a goalkeeper. Wolfsberger ‘confident’ to keep Nikolas PolsterAccording to 90Minuten, Wolfsberger are confident of tying Polster down to a new contract, with just 12 months remaining on his existing deal. Wolfsberger’s sporting director has confirmed that the club have received no offers for Polster, despite a host of suitors being credited with an interest. Brentford, Brighton, Wolves, Saint-Etienne and Augsburg have all been linked, whilst reports in Austria have insisted that Polster would be keen on a move to Celtic.