World Heavyweight boxing champions, Anthony Joshua and Tyson Fury bumped into each other while holidaying in Marbella on Saturday, July 17.   The British boxers who are set to go toe-to-toe in an all-British heavyweight unification clash next year, came face-to-face just before Fury flew out of the holiday resort following his son Prince Tyson Fury II’s dinosaur-themed fourth birthday party.     An elated Joshua took to …