Ghanaian goal-machine Emmanuel Clottey scored twice to help Berekum Chelsea come back from behind to draw 2-2 at DR Congo's Mazembe. Four-time champions Mazembe surrendered a two-goal lead after starman Tresor Mputu - the competition's all-time leading goalscorer - scored twice before the break. Mputu opened the scoring after 11 minutes with a well-placed shot before doubling the hosts' lead on 31 minutes, firing home on the rebound after his initial penalty was saved by the keeper. The visitors replied in the second half, courtesy of another double from the competition's top scorer Clottey, who hit a hat-trick against Zamalek in the opening game. Clottey earned a penalty kick as he converted home himself on 70 minutes before shocking the home side six minutes from the end with a superb left-footed strike. Chelsea lead Group A with four points as Mazembe moved to third with one. Egypt duo Zamalek and Ahli clash later on Saturday in Cairo.