Head to head
These sides have played thirty five (35) times, with DR Congo winning 15, losing 10 and drawing 10 against Congo
-The African neighbours have met three times in Afcon DR Congo winning 3-0 in 1968 and 2-0 in 1972 before Congo turned the tables in 1974 with a 2-1 victory
Performance in the Africa Cup of Nations
Congo
- This will be only the second time Congo Brazzaville have featured in an Afcon quarter-final after losing 2-1 to Ghana in Senegal 23 years ago
-The Red Devils were the champions of the continental showpiece in 1972
DR Congo
-They won the AFCON in 1968 and 1974
-DR Congo have reached the Afcon quarter-finals five times and their lone success came 17 years ago when they shocked Cameroon 1-0 in Burkina Faso
Current form
Congo
-They gained the highest points at the group stage among all the 16 nations , 7.
-FIFA rankings suggest a close encounter with DR Congo (13-57) just two places ahead of Congo (15-61) in Africa and four ahead in the world.
-Congo hope coach Claude LeRoy's two stints as DR Congo coach will give them some inside knowledge and an advantage.
-LeRoy is in confident mood: "Our potential, talent, vigour make us a good bet for the semi-finals."
DR Congo
-FIFA rankings suggest a close encounter with DR Congo (13-57) just two places ahead of Congo (15-61) in Africa and four ahead in the world.
- Group B runners-up DR Congo this week became only the third country after Guinea (2015) and Mali (1972) to reach the knockout stage without winning
-Coach Florent Ibenge, who is also in charge of AS Vita Club - the big club in Kinshasa - added: "We are the same country separated by a river. We know our brothers, we are the same people, the same lives.
"We qualified with a lot of difficulties as we as were the 16th team to get here. Everybody thought we would be eliminated but we are still here.
- DR Congo will be without injured skipper Youssouf Mulumbu, who also missed the final group game against Tunisia with a hamstring injury.
"They have a good team with a good and experienced coach. We just hope we don't go behind and have to chase the game as we did against Tunisia."