Raja Casablanca of Morocco began their title defence by thrashing visiting Cercle Mberi Sportif of Gabon 5-0 Sunday in the round-of-32 first leg.
All the goals came during the second half with Captain Badr Benoun temporarily abandoning his centre-back duties to trigger the rout with a 52nd-minute goal at the Stade Mohamed V.
Mahmoud Benhalib, leading scorer in the second-tier African club competition last season with 12 goals, netted soon after and Abderrahim Achchakir converted a penalty on 68 minutes.
With the two-leg tie slipping from their grasp, the Gabonese collapsed in the closing stages and Ben Soumahoro conceded an own-goal before Ugandan Muhammad Shaban completed the rout.
Shaban Mohammed on account registers his first win at the new club as later on will be joined by fellow country-mate Brian Majwega who is finalizing his move to the same club.
Raja Casablanca are the second biggest round of 32 first leg winners after Zamaleck of Egypt, who humiliated ASCOT of Chad 7-0 in cairo.
Both clubs will face off again this Saturday in Libreville and the only issue to be resolved would be how many goals Raja will win on aggregate.