Postpublished at 16:46 Greenwich Mean Time 31 January 2015
DRC striker Jeremy Bokila tries an audacious effort from long range, but it's just over the bar.
Balboa free-kick seals win for Eq Guinea
Tunisia ranked 96 places higher than hosts
Congo 2-4 DR Congo
LeRoy's Congo had led 2-0
James Gheerbrant
DRC striker Jeremy Bokila tries an audacious effort from long range, but it's just over the bar.
Congo skipper Prince Oniangue floats a cross out to the right for Franci Litsingi, who claims his cushioned volley back across goal struck a hand. Nothing doing from the referee.
BBC World Service's Matthew Kenyon in Bata
"Yannick Bolasie is looking a little vulnerable. DR Congo have plenty of attacking options on the bench."
And that's a very decent effort from Ferebory Dore from the resultant free-kick. He takes a long, straight run-up and catches the ball clean as a whistle, sending an absolute howitzer of a strike inches over the bar.
Le Millenium: I've got a feeling that the oldest player in this tournament will be the star in the penalty shootouts. C'mon Leopard!
DR Congo keeper Robert Kidiaba turns 39 tomorrow.
Now Thievy Bifouma has a chance to get into the match. The ball breaks to him on halfway and he runs at the DRC defence with menace, eventually drawing a cynical foul from Jeremy Makiadi, who picks up the first booking of the match.
Congo striker Thievy Bifouma hasn't been able to get into this match so far, and his frustration gets the better of him as he clatters Chancel Mbemba needlessly on the edge of his own area. DRC left-back Jean Kasusula steps up and curls an effort over the top.
That's a decent opportunity for DR Congo. Cedric Mabwati shows good feet down the left and digs out a cross which is headed to Jeremy Bokila, but the striker can't quite adjust his feet and his effort is tame.
Phat James: Listening to Matthew and Piers on World Service, supporting DRC to beat Congo though the game is lacking scoring chances
Stephen Collins: So it's Congo v Congo in the QFs here. Very confusing to watch. Mind you, smart move entering two teams. Doubles your chances :)
This contest hasn't quite come to life yet. Neither side are really willing to press their opponents high up the pitch, and despite the prize of a semi-final spot in the offing, there's a distinct lack of intensity so far.
Teddy Fleuridon: I wish my country Congo-Brazzaville to win. We have proven very consistent in the first stage. We're behind you!
Congo-Brazzaville is one of the official names for Congo by the way.
Thievy Bifouma is looking a little isolated up front for Congo. The Red Devils play the ball nicely up to halfway, then skipper Prince Oniangue thumps it long in search of the former West Brom man, who is easily crowded out. More subtlety needed from Claude LeRoy's men.
Bespectacled Congo coach Claude LeRoy is not a happy man. 'Insuffisant!' he yells at his players - that's 'not good enough'. On what we've seen so far, hard to disagree with him.
BBC World Service's Piers Edwards in Bata
"DR Congo are yet to make the breakthrough but they've had the better of the play. Their passing is decent, their build-up play is decent but they have nothing to show for it - they aren't converting chances."
That's better from Congo. They show good patience to work the ball to Arnold Moutou on the edge of the area, and his crisp shot forces Peterborough's Gabriel Zakuani into a good block.
It's just not happening for Congo at the moment. Delvin Ndinga floats a pass out to Thievy Bifouma on the right, but his attempt to knock it back inside to Franci Litsingi is misdirected.
More trouble down the left for Congo as Cedric Mabwati gets to the byeline and stands up an inviting cross, but it just eludes the heads of the DR Congo attackers. DRC weren't particularly impressive in the group stages, but they've started with authority here.
A welcome foray into the DR Congo half for Congo, who have been under the cosh so far, but Delvin Ndinga can only find the gloves of Robert Kidiaba with his cross.
BBC World Service's Matthew Kenyon in Bata
"There are a lot more people here now than there were at the start of the game. People have tickets for both games so they are coming in early for Tunisia v Equatorial Guinea."