In July the three companies announced a deal that gave publicans 50 per cent off their Sky Sports Subscription if they stocked brands from both drinks companies.
You can see the full details of the deal here.
They are now offering the chance to win an all-expenses paid trip to Dublin for licensees that sign up to the deal between now and the end of November.
As well as an all expenses trip to Dublin, the winner will get a visit to the Guinness Storehouse and Open Gate Brewery experience.
Diageo On-Trade Director, Melissa Yorke, said: "There's huge opportunity for licensees to drive footfall, increase dwell time and ultimately boost profits as a result of screening live sports in their venues. With the 50 per cent off a Sky Sports package offer now available, it will make it easier for pubs and bars to maximise this opportunity.
"As our partnership with Sky Sports continues to grow, we want to give back to our customers and give them the chance to learn more about the Guinness brewing process and the rich history behind the brand. Diageo has been a long-standing sponsor of sport and so what better time to do it than when this bumper season is on our screens."
For more details and the chance to enter go to yourgamechanger.co.uk