Gyan trained at the
Right to Dream Academy in Ghana before leaving his home country for the United States to further his football career. While attending
Dunn School, Gyan was honored as a 2005 NSCAA/adidas Boys High School All-America Team. That same year, he was awarded the 2005 NSCAA/adidas High School Boys State Player of the Year for the state of
California. In 2006, he joined the youth system of English
Premiership club
Fulham, and in 2008 was loaned to Belgian
Jupiler League side
Germinal Beerschot until 2010 due to work permit issues. He was released in the summer of 2010. In January 2011, Gyan joined Canadian club
Toronto FC of
Major League Soccer on trial for their pre-season in
Antalya, Turkey. After a two-week training camp with
Viking, he signed a contract with the
Norwegian Premier League club. Swedish club
Halmstads BK signed him on a one-year contract after a week of tryouts on 11 February 2014. Gyan retired from professional football in 2016, and has since worked for the
Right to Dream Academy. == International career ==