He was then signed the following year with the Oakland Raiders and played during the pre-season but spent the regular season on the Injured Reserve list. Quarshie played in Finland for the Porvoo Butchers during 2007 and signed as a free agent with the Toronto Argonauts on February 15, 2008.
He was subsequently contracted by the Oakland Raiders the following year and participated in the pre-season but spent the regular season on the Injured Reserve list. Quarshie played in Finland for the Porvoo Butchers during 2007 and signed as a free agent with the Toronto Argonauts on February 15, 2008.