蜜芽传媒

Whether it鈥檚 breathing new life into a title challenge, or inspiring a great escape, there鈥檚 no doubting the impact a big-money signing can make in football.

And with deadline day approaching, Premier League clubs are again preparing to open the cheque books and fire up the fax machine.

With so much at stake, it鈥檚 crucial that a new signing stays fit and free of injury; which is why a thorough medical is so important.

5 live鈥檚 George Riley has been to look round Perform at St. George鈥檚 Park, a state-of-the-art facility which carries out medicals for top clubs.

The experts at Perform have been giving George an insight into what happens at a medical, and testing whether he鈥檚 fit enough to perform at the top level.

This clip is originally from 5 live Breakfast on January 19 2016.