Career
William played for Sekondi Wise Fighters in the 2009/10 season Ghana Premier League season, finishing 15th in the 2009/10 Ghana Premier League season. Eli Guttman, then Hapoel Tel Aviv"s Manager, enthusiastic young talents called him and asked to purchase long-term investment. After F.C. Ashdod wanted him, and they signed William as a Hapoel player to help the talented team in the league as a temporary player replacement, but after the team was unable to sign their fifth 1st choice foreign player, it was decided William will be the fifth foreign player.
On January 2011, William went on loan to Sektzia Nes Tziona F.C., playing in the second division of Israeli football.