Ivory Coast striker Didier Ya Konan will miss their FIFA World Cup clash with Colombia on Thursday due to a knee injury.
Coach Sabri Lamouchi confirmed the Hannover forward was also in doubt for their final Group C clash with Greece in Fortaleza on Tuesday.
Ya Konan came on as a second-half substitute in the Ivorians' 2-1 win over Japan but almost immediately looked to be struggling, and Lamouchi confirmed on Thursday that he hopes to put his player on ice with an eye to the knockout stages.
"We do not want to take any risks with him," Lamouchi said, ahead of Ivory Coast's clash with the Colombians in Brasilia.
"We hope he will recover as early as the match against Greece but if that doesn't happen then maybe for the second round."
Lamouchi warned Ivory Coast's inexperience at World Cups could be a factor against the battle-hardened Colombians, and claimed the midfield stoush would be influential to the result.
"Colombia and Ivory Coast have never faced each other in their history," Lamouchi said.
"I want to emphasize first that Ivory Coast will play in only its eighth World Cup match ever, so the game against Colombia...will be totally different opposition to Japan.
"These are two teams with an opposite style. We know it will be a tough match. We will not get that much space.
"It will be a match where we need to win our duels in midfield to impose our game. We know we have the weapons to compete but we must be careful."
Lamouchi was not underestimating Colombia's attacking strength, despite Radamel Falcao absent from their squad to injury and Carlos Bacca ruled out of their clash on Thursday.
"It's a team that has offensive strengths. Just look at their bench," Lamouchi, a former France international, said.
"Jackson Martinez came on during the match against Greece. They have many important assets.
"I don't know how they will approach the game. What I know is that it will be different from the match against Japan.
"We have to be ready to face the Colombians tomorrow."
|Coach: J. Pekerman|
for V. Ibarbo 53'
for P. Armero 72'
for A. Aguilar 79'
|O´Neill delighted with second-half display|
|First-half dominance pleases Deschamps|
|Muller criticises Germany profligacy|
|Euro 2016 Qualifying Review: Portugal go top, Gibraltar make history in defeat|
|Liverpool the only English club I could play for - Suarez|
|France 2 Denmark 0: Lacazette off the mark in routine victory|
|Republic of Ireland 1 Poland 1: Long rescues vital point|
|Portugal 2 Serbia 1: Coentrao puts hosts top of Group I|
|Strachan hails ´terrific´ Gibraltar|
|Lafferty back playing with a smile on his face - O´Neill|
|Toure to reveal Ivory Coast future over coming days|
|Georgia 0 Germany 2: Reus and Muller on target for world champions|
|Northern Ireland 2 Finland 1: Lafferty inspires fourth qualifying success|
|Scotland 6 Gibraltar 1: Casciaro´s historic moment outshone by Fletcher´s hat-trick|
|France 2-0 Denmark: Lacazette and Giroud on target|
|Firmino hopeful of Copa America spot|
|Hummels considering options at Dortmund|
|Suarez goalless on Anfield return, but Balotelli nets stunner|
|Casciaro scores first competitive goal for Gibraltar|
|Fleetwood Town 1 Preston North End 1: Ball stunner claims share of derby spoils|
|Italy v England: Judge me on results, says Conte|
|Colombia v Kuwait: Falcao seeking another strong showing|
|Brazil 1 Chile 0: Firmino settles scrappy affair|
|Luxembourg v Turkey: Let´s kick on, urges Terim|
|South Africa 1 Nigeria 1: Zungu strikes late to earn draw|
|Smalling wants long-term United stay|
|South Africa 1-1 Nigeria: Last-gasp Zungu goal cancels out Musa strike|
|Italy call up Santon and Abate for England friendly|
|Switzerland v United States: Klinsmann eyes learning curve|
|Netherlands v Spain: Hiddink has players´ support, says Wijnaldum|
|A-League Review: Sydney end Wellington run, Adelaide suffer injury blows in Jets win|
|Henderson eyes long-term Liverpool future|
|I have nothing to prove - Bale|
|Brazil 1-0 Chile: Firmino gives Selecao battling victory|
|South Korea v New Zealand: All Whites looking to future|
|Japan v Uzbekistan: Hosts eye another win under Halilhodzic|
|MLS Review: Kaka nets in Orlando draw|
|Mexico 1 Ecuador 0: Hernandez, Corona help Herrera´s men to victory|
|Deschamps calls for France response|
|Dunga unfazed by pressure|
|Montenegro fan turns himself in after flare incident|
|Injured Messi not ready - Martino|
|Hodgson: Rooney not close to Charlton|
|Terim proud of Turkey|
|Hiddink happy with point|
|Euro 2016 Qualifying Review: Netherlands and Italy stage late escapes|
|Debutant Eder delighted with Azzurri bow|
|Argentina 2 El Salvador 0: Mancuello nets debut goal in straightforward win|
|Kovac not satisfied despite Croatia victory|
|Netherlands 1 Turkey 1: Huntelaar spares Hiddink from historic home loss|
|Ghana 1 Senegal 2: Konate brace downs Black Stars|
|Bulgaria 2 Italy 2: Controversial debutant Eder rescues Conte´s men|
|Morocco 0 Uruguay 1: Cavani spot-kick seals win|
|Al Sadd say talks with Xavi ongoing|
|McClean slams Sunderland´s handling of poppy controversy|
|Ghana 1-2 Senegal: Black Stars continue Afcon hangover|
|Cheltenham player diagnosed with cancer|
|Palace takeover talk premature - Parish|
|Odegaard becomes Euro qualifiers´ youngest starter|
|Job not done yet, Bale warns Wales|
|Israel 0 Wales 3: Brilliant Bale bags brace as Wales go top|
|Dunga backs Neymar to overhaul Pele´s Brazil goal record|
|League Two Review: Hartlepool climb out of drop zone, Cheltenham go bottom|
|El Salvador 0-2 Argentina: Martino's men triumph without Messi|
|League One Review: Canavan leaves it late to deny County|
|Freddy Adu signs with 11th team in as many years|
|Besiktas deny Cech, Danny rumours|
|Puerto Rico v Canada: Haber targets more momentum|
|Miranda not contemplating Atletico exit|
|Austin relaxed over England prospects|
|Manchester United should sign Ibrahimovic - Schmeichel|
|Ibe eyes Liverpool run-in|
|Bertrand called up by England as withdrawal of four players confirmed|
|A-League Review: Risdon nets stunner, Germano tames Roar|
|Panama v Costa Rica: Unbeaten run a secondary concern for Wanchope|
|Italy coach Conte shaken after death threats - FIGC chief|
|Barca fears over Alba eased|
|Schweinsteiger to start Germany qualifier|
|Akinfeev thanks fans after flare incident|
|Injuries offer Kane chance of first England start|
|Russian Football Union to protest following Montenegro abandonment|
|October comeback the target for injured Foster|
|Van der Vaart looks set to leave Hamburg|
|Bale focused on Wales - Coleman|
|Kluivert helps Curacao to victory|
|Hamstrung Alba returns to Barcelona|
|Macedonia v Australia: Confident visitors eye victory|
|Akinfeev to return to Moscow with Russia squad|
|Brnovic: Montenegro have no chance of qualifying|
|Russia had to resume after Akinfeev incident - Capello|
|Terim: Robben absence important|
|Brazil - Chile Preview: Winning is 'our only option' - Dunga|
|France - Denmark Preview: Olsen hits out at 'disrespectful' hosts|
|Morata keen to keep working|
|Canada 1 Guatemala 0: Haber heads Floro´s men to win|
|Difficult to find a place for Kane in starting XI - Hodgson|
|Difficult to find a place for Kane in starting XI - Hodgson|