Zamalek could be without most of their firepower when they face Tanzania's Young Africans in the Champions League return leg on Saturday. After Amr Zaki had been ruled out with a torn hamstring, Ahmed Gaafar became a major doubt after sustaining a knee injury in a warm-up match against Tersana, while Razak Omotoyossi is away with Benin. “I received a fierce knock to my knee and scans showed it's a ligament problem, but thank God it's not a cruciate ligament injury as initially thought,” the 27-year-old told FilGoal.com. “I do not know whether I would be able to feature against Young Africans or not. I will undergo a final medical test on Wednesday. “There is a crisis in the team's attack following Amr Zaki's injury and the probable absence of Omotoyossi. Now only Mido is available.” Omotoyossi is doubtful as he leads Benin in a CAN 2013 qualifier in Ethiopia on Wednesday and could well miss the Yanga game if he failed to report back before Friday. Coach Hassan Shehata might be forced to hand Mido - who has just completed a diet program after suffering fitness problems for quite a while - a starting berth for the first time since his return to the club last year. Zamalek are already in a comfortable position as they rely on a 1-1 away draw from the first leg.