Musa competed for the Qatar national basketball team at the 2007 and FIBA Asia Championship 2009.Yasseen MUSA (QAT). China2009.fiba.com. Retrieved on 2016-06-18. Previously he competed for the junior national team at the 1999 FIBA World Championship for Junior Men and 2001 FIBA World Championship for Young Men. At the 1999 tournament, he averaged a tournament-best 25 points per game, ahead of future NBA players Andrei Kirilenko and Juan Carlos Navarro and was the second leading rebounder with 12.4 rebounds per game.Yasseen Musa. Archive.fiba.com. Retrieved on 2016-06-18.
