In supporting contests Watson’s fellow Oldham fighter Darren Stubbs challenges Bob Ajisafe for the vacant English light-heavyweight title.
Vassell is also in action in Oldham when he boxers a six round non-title fight against Nicaraguan Ronny McField.
Hatton Promotions youngsters on the bill are Austin Hornsby who meets Jason Nesbitt, Dean Halsall is up against Ryan Clark and Matthew Clarkson tackles James Tucker.
Boxing fans can watch Purdy vs Watsonll LIVE on Youtube byClicking Here
The card will be available from 7pm on July 16 with Phil and Micky the men behind the mic giving their expert opinion. Simply Click Here