JOHANNESBURG, Oct 2, 2008 (AFP) - Leading African Champions League marksman Stephen Worgu has a two-fold mission when Nigerian club Enyimba tackle Egyptian visitors Al-Ahly in the semi-finals this weekend.

The 19-year-old who has taken the competition by storm faces the challenge of unlocking one of the meanest defences on the continent as he tries to increase a 13-goal haul from 12 matches.

And the tall Nigerian teenager who says there is no secret to his amazing predatory prowess wants to impress Ahly after claiming the Cairo 'Red Devils' head a queue of clubs hoping to sign him.

Worgu has scored in nine African matches for 2003 and 2004 Champions League title holders Enyimba, who stage the first leg Sunday at their fortress in the south-east industrial city of Aba.

'There is no secret when it comes to scoring, I just want to win well and that is all I have in mind when I line up for my club,' said a goal poacher virtually unknown outside his homeland until this year.

'Ahly are showing interest in me and South African club Mamelodi Sundowns, but my mind is fixed on the Champions League for now,' he added during an interview with Nigerian journalists.

Worgu is not the only threat posed by the 'Peoples Elephant' with Ezenwa Otorogu the second highest Champions League scorer this year with six goals for a team that averages 3.5 per home match.

Despite the mid-year loss of star goalkeeper Essam al-Hadary to Swiss club Sion after a protracted transfer tug-of-war, an Ahly defence marshalled by Shady Mohamed has conceded only four goals in as many away outings.

The Egyptians, who share the Champions League record of five titles with compatriots Zamalek, are taking no chances having postponed a national league fixture against Ismailia scheduled for Monday to ensure the squad is fresh.

And the 'Red Devils' have hired a jet to dodge often stressful stopovers en route to Aba, where Ahly triumphed 1-0 when the clubs clashed in the group phase three years ago.

While it is no surprise that Enyimba and Ahly are among the last four contenders, not a single football fan outside of Zimbabwe and Cameroon could have anticipated Dynamos and Cotonsport Garoua reaching the penultimate phase.

The surprise packets meet in Harare Sunday with Dynamos hoping to add another glorious chapter to a tale that has seen them fund three long, expensive flights from a country with the highest inflation in the world.

Runners-up 10 years ago, Dynamos stunned defending champions Etoile Sahel of Tunisia in the final qualifying round before finishing second behind Ahly in a group including big names Zamalek and ASEC Mimosas of the Ivory Coast.

Dynamos were expected to finish bottom of the table and so where Cotonsport from the northern city of Garoua in the other pool, which they won ahead of Enyimba, TP Mazembe of the Democratic Republic of Congo and Al-Hilal of Sudan.

Edward Sadomba is the leading Dynamos scorer with five goals, a tally he shares with Niger-born Kamilou Daouda of Cotonsport, whose sweet passing ripped Enyimba apart in Cameroon two weeks ago.

After Canon Yaounde won the title thrice and Union Douala once by 1980 during a golden period for Cameroonian clubs, the central African country has had no joy largely because of the exodus to Europe of their best footballers.

The return matches are scheduled for the weekend of October 17-19 with the winners advancing to the final of a competition offering a million-dollar first prize plus an invitation to the FIFA Club World Cup in Japan.