Member of the U23 National side

• June 2007: Isaac Vorsah will be joining the newly promoted 2nd Bundesliga club TSG Hoffenheim in Germany. The 19-year-old Kotoko defender is on loan at Hoffenheim. The club has an option to sign him for 3 years ('til 2011) at the end of the season. Hoffenheim manager Jan Schindelmeiser said "We have had an eye on Isaac for quite a long time, he is one of the best defenders in Ghana and has got great potential, we are all sure that Isaac will have a great future with our club"