"We know it's a very strong Colombia team", said Koulibaly.
Thursday's World Cup scoresColombia wins group but lose James?
"I thought they had better control and possession than us in the first half".
Januzaj's superb second-half goal sent Belgium into a last 16 clash with Japan while England will now advance to a second round meeting with Colombia on Tuesday.
Senegal suffered the agony of failing to progress due to having picked up more yellow cards than Japan, after the pair finished level on points and goal difference following the last round of Group H action on Thursday.
Michael O'Neill, Northern Ireland manager and BBC pundit: "It takes you back to World Cups in 1982 and 1986, when we saw games like that".
And at the World Cup, pride means a lot.
Neymar new hairstyle before the start of the world Cup
Neymar returned to Brazil training at the World Cup on Wednesday, a day after quitting a session early due to an ankle issue . Jesus had a quiet game against Switzerland in the 1-1 draw on Sunday and was replaced by Roberto Firmino in the second half.
During injury time, Japan's players softly passed the ball among themselves, while their Polish opponents barely made an effort, content to finish the tournament with a victory following two losses. Muto was one of six changes to the starting lineup for the match.
Poland, though, came closest to taking the lead when in the 32nd minute, goalkeeper Eiji Kawashima did well to keep a well-guided header from Kamil Grosicki out.
After their team conceded a goal and then squandered good chances in the dying minutes, the carnival atmosphere gave way to silence and finally the kind of frustration that had been building since Senegal drew with Japan last Sunday, despite twice leading the match.
But with minutes remaining, any kind of urgency went from the game.
These were not scenes to do the World Cup proud but while it may have looked the ultimate in safety-first football, it was extremely risky: had Senegal scored, Japan would have been out.
Being part of one of the most unpredictable groups in the competition, Japan did just enough to ensure their progression in the competition - finishing second behind eventual winners Colombia. Nishino put Japan's fate in the lap of the Gods and, once again, got away with it.
"But when it comes to cards I guess players will have to start thinking about how important a card can be and as a coach we should also start thinking about this".
Just like qualification, it doesn't matter how you get there, the crucial thing is to do it.