George Groves believes Anthony Joshua hasn’t retired from boxing because he wants to beat Tyson Fury. AJ is currently preparing for his showdown with Daniel Dubois, with the pair set to go up against each other at Wembley on September 21. Should he win, it will fuel more talk about a potential bout with Fury. The Gypsy King, for his part, is currently gearing up for his rematch with Oleksandr Usyk on December 23. Should he get the better of Usyk, having lost to the Ukrainain in May, it would then open the door to a potential showdown with Joshua after years of speculation. Groves, speaking to …