Etoile du Sahel and Tunisia midfielder Mohamed Amine Ben Amor faces a long spell on the sidelines after suffering a serious knee injury in his side's 1-0 loss to Zamalek in the first leg of the Confederation Cup semi-finals on Sunday. The 26-year-old failed to complete the game after twisting his knee, rupturing the anterior cruciate ligament. Consequently, he will miss Sunday's second leg against Zamalek in Sousse and will not be available for this summer's Africa Cup of Nations. Ben Amor has earned 30 international caps since making his Tunisia debut in June 2015, scoring three goals. Tunisia were drawn in Group E along with Mali, Mauritania and Angola. (For more sports news and updates, follow Ahram Online Sports on Twitter at @AO_Sports and on Facebook at AhramOnlineSports.)