Prunty commented on his arrival in GB's EuroBasket preparations: "I have decided to add Paul at this time to strengthen our training squad. He is an accomplished guard that will help our preparation for EuroBasket."
Guede added: "It's an honour to be invited to camp as there are so many talented players in Great Britain. I feel very blessed and extremely excited about this opportunity."
A decision on the final squad to travel to Slovenia for EuroBasket 2013 will be made after the tournament in Poland.