The Reds will play Valerenga at the national Ullevaal Stadium on August 1st, kick off 6pm.
"Even though it is a friendly match, it is an important match for Valerenga. We get a good test against an opponent that plays in one of the best leagues in the world, and that will help develop Valerenga further," said their manager Martin Andresen.
"We are very happy with this game and we're looking forward to playing in a sold-out stadium."