Zamalek lost by a goal to nil at DR Congo's Mazembe in the CAF Champions League Group A. A 13th minute strike by Zambia forward Rainford Kalaba downed the Egyptians in Brazzaville. The defeat leaves Zamalek bottom of the group with three points from three games. Mazembe, who beat Zamalek twice last season, move to top with six points as Vita Club and Hilal are tied on four. Zamalek players were furious with the referee during and after the game, which prompted security forces to intervene. Manager Mido also had to rush into the pitch to separate his angry players from match officials. VIDEOS Kalaba, who was once linked with Zamalek, finds the net with a scruffy shot that went past three defenders.