
The Ghana international, who played at the World Cup in Brazil, spent the second half of last season on loan at French side Valenciennes, where he scored nine goals in 16 games.
The 26-year-old will spend the rest of the season at Metz, who also have an option to buy the player. The deal is the second between the clubs this month after Diafra Sakho joined West Ham in a permanent move.
This weekend's fixtures
GROUP A
• Real Bamako vs Coton Sport 1:1
• AC Leopards (CGO) vs ASEC Mimosas 4:1
GROUP B
• Sewe San Pedro vs Nkana 3:0
• Al Ahly vs Etoile Sahel 0:0
A second-half hat-trick from Kader Bidimbou and a Cesaire Gandze strike gave Leopards the victory which helps them close the gap on leaders Coton Sport to just two points with one round of group matches remaining.
Group A
• 27 July: Coton Sport vs Asec Mimosas 2:1
• 27 July: AC Leopards vs Real Bamako 1:2
Group B
• 27 July: Al Ahly vs Sewe Sports 1:0
• 27 July: Nkana vs Etoile du Sahel 4:3
The Super Eagles climbed three places in the Confederation of African Football region and 10 spots on the global list - up to 34th in the world.
Coton Sport secure a dramatic victory against Asec Mimosas.
Group A
• 06 June: Asec Mimosas vs Coton Sport 2:3
• 07 June: Real Bamako vs AC Leopards 1:2
Group B
• 07 June: Etoile du Sahel vs Nkana 4:3
• 08 June: Sewe Sports vs Al Ahly 1:1
Coton Sport secure a dramatic victory against Asec Mimosas.
Group A
• 06 June: Asec Mimosas vs Coton Sport 2:3
• 07 June: Real Bamako vs AC Leopards -:-
Group B
• 07 June: Etoile du Sahel vs Nkana -:-
• 08 June: Sewe Sports vs Al Ahly -:-
Mali's Seydou Keita has signed a one-year deal with Italian side AS Roma.
Nkana mourn the sudden death of coach Masauso Mwale
GROUP A
• 24.05.14: Asec Mimosas (Ivory Coast) vs AC Leopards 0:0
• 24.05.14: Coton Sport (Cameroon) vs Real Bamako 2:1
GROUP B
• 24.05.14: Etoile du Sahel (Tunisia) vs Al Ahly 1:1
• 25.05.14: Nkana (Zambia) vs Sewe Sports 0:0