On Thursday, as the group phase draws to a close, Senegal only need a draw to advance but victory for Colombia will put them into the next round instead, leaving Senegal eliminated if Japan avoid defeat against Poland in Volgograd at the same time.
Colombia could qualify with a draw as long as Japan lose.
"He can do better, but today he was better than against Poland and he needs to do better against Colombia".
Senegal will be concerned by the potential of letting slip a favourable position, after kicking off the tournament with a 2-0 win over Poland and then being in command against Japan, only to prove unable to secure all the points.
As for Senegal, a draw is enough.
"We were very pleased with him, but we will have to see about this next match". It bounced back off his leg for his first World Cup goal.
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Senegal have been playing well. "We're aware that we will have to give everything to qualify", Ndiaye said.
The only previous meeting between the Africans and the South Americans was a friendly match in Buenos Aires, Argentina, in the buildup to the 2014 World Cup in Brazil, which ended 2-2 after 10-man Senegal managed to come back from a 2-0 deficit.
On the pitch, the team have real quality throughout their side, with stars such as Napoli's Kalidou Koulibaly in defence, Everton midfielder Idrissa Gueye and Liverpool's Sadio Mane in attack.
"I think we have to focus on getting three points rather than make calculations".
Senegal were far from convincing against Japan and even though Mane scored the opener it had a large dose of good luck about it. They are aiming at a win.
Group H is the group of death because it's so hard to split the teams. They've managed to turn on their style when it matters most. Senegal had progression in the palm of their hand against Japan but let the lead slip twice and now they face a huge challenge to reach the knockout face, especially after Colombia hit form against Poland.