"These games will be good, they will definitely prepare you mentally because it's one thing to practice but it's another thing to play," Adegboye said. "These games will be tough, Nigeria are in the Olympic qualifiers so they won't be a push over by any means."
He added: "We played them last year and they were very physical then but if we play as a team which we are capable of doing and our focus is right then this will be a good experience for us, especially in the environment we will be playing in."
Great Britain prepared for last year's EuroBasket with a game against Nigeria in Cobham, which GB ran out comfortable 95-80 winners; Adegboye hitting 13 points that day.
The former Brixton Topcat has been a mainstay for GB at the point guard position since 2010, averaging just over three points and two assists a game at last year's EuroBasket Finals in Lithuania.
Adegboye was honoured to be representing GB and potentially going into a home Olympic tournament this summer, and he is looking forward to the challenges that lie ahead of the opening warm-up game: "The camp overall is competitive, everyone is coming prepared and the energy is there too as we all want to be in London playing at the Olympics."
Adegboye added: "This is a once in a lifetime opportunity, and even though we're playing competitively, I'm enjoying it as I'm fighting for a spot at the Olympics and you don't get to say that every day."
After Thursday's game with Nigeria, Great Britain play Lithuania on Saturday before travelling to San Antonio on Monday to play Russia.