Its the latest incident to involve fans since the club left the Boleyn Ground last season to take over the former Olympic Stadium. Boss Arsene Wenger is still unsure when the Welsh star will return and fears rushing him back too soon after all his hamstring problems. The research was conducted by Swiss-based CIES Football Laboratory,?an independent study centre based in?Switzerland who?specialise in the statistical analysis of football. RELATED STORIESWenger fears for RamboArsenal growing increasingly alarmed over Aaron Ramsey's r. Reuters5Ryan Mason levels for Hull at the Britannia StadiumGetty Images5Ryan Mason wheels away in ce. Now 38 and manager of non-league side Chorley, Jansen was once was one of the most in demand players in the Premier League. day that he thinks he is an England squad player he is making the biggest mistake. United take on Liverpool, Chelsea, Manchester City and a Europa League clash with Fenerbahce in?a daunting schedule next month that will go a long way towards shaping their season. Fans protested at games at the end of last season to get a new owner and Arsene Wenger removed as manager. And they would be happy to let Toure – who is under contract until next summer – join one of their rivals to free up funds for Guardiola to strengthen his squad.