[4] He was waived at the end of training camp and spent the first two months of the 2005 season on the team's practice squad.
He started his first career game on November 11, 2007, against the Kansas City Chiefs, logging his first tackle against return specialist Dante Hall.
A restricted free agent in the 2008 offseason, Abdullah signed his one-year tender offer from the Broncos on April 17.
Abdullah was signed by the Cleveland Browns on October 6, 2008, after the team waived wide receiver Steve Sanders.
Hamza, together with his brother Husain, chose to take the 2012 NFL season off in order to make a pilgrimage to Mecca.