By Tom Primmer Five teams remain in finals contention in the Hospital Challenge Cup as the competition prepares to enter its fifteenth round this weekend. Ladder-leaders the University of Queensland will travel south to face Bond University, who could drop out of the top-four with a loss in the inter-varsity clash. The Heavies have made a number of changes to their side, with Brad Twidale returning at flyhalf and inside-centre TJ Siakisini starting and, while Will Roach and Connor Mitchell form a new combination in the back row. After a narrow loss to GPS last week, the Bullsharks have been bolstered by the inclusion of Joey Fittock at fullback, while Junior Wallabies squad member George Blake will start in a youthful front row alongside Zane Nonggorr and Jack Winchester. Bond skipper Dan Boardman believes his side his ready to go to another level as the true business stage of the season begins. “Playing UQ, they’re always fit and play very fast in phase play,”