Penalty to Coventry - a potential lifeline here.

Victor Torp goes down in the box.

The Addicks win a free-kick in the Oxford third - just giving away a few fouls at the moment the hosts.

Sonny Carey floats it in deep but it's dealt with by the U's.

Middlesbrough make a late change as Tommy Conway comes off for George Edmundson as they try and see the game out.

Steve Ogrizovic
Ex-Coventry City goalkeeper on BBC CWR

I said before this game that a point would be a good result today.

I have a lot of respect for this Southampton team. They've not been brilliant today but they've had the threat going forward. The second goal was a disappointing one to concede from our perspective.

Generally speaking, we've got ourselves into good areas and put good balls into the box but we've just not been on the end of them. We've won six on the bounce, you can't expect us to be on it every single week.

You never know what can happen, but you don't really feel we're going to score now.

Coventry sub Victor Torp attempts to catch Daniel Peretz out at his near post from a free-kick but it goes well wide.

The Saints fans are in full voice as you can imagine.

Bristol City almost find an equaliser as Cameron Pring heads Tomi Horvat's free-kick into the box just wide.

A heart in mouth moment for Middlesbrough.

Przemysław Płacheta has looked a livewire down the left wing since coming on for Oxford.

He chases down a long ball forward before sending another cross into the Addicks box.

The problem he's got is his teammates aren't matching his fresh energy and again there's no-one there to capitalise and put this game to bed.

Peter Rhoades-Brown
Former Oxford and Chelsea winger on BBC Radio Oxford

Charlton have no choice but to come at us, hopefully we can hit them on the break.

I'm just looking at the tanks in our team and a few of them are looking empty.

There's a fair chance Stan Mills could be man of the match again - another great performance.

More changes for the visitors as Ibrahim Fullah and Joe Rankin-Costello are introduced in place of captain Greg Docherty and Luke Chambers.

Przemysław Płacheta flashes a ball across the Charlton box but there's no-one there to get on the end of it for Oxford.

Stanley Mills is now coming off for the hosts, to be replaced by Will Vaulks for the final six minutes plus added time.

Sensing a bit of nerves around the Riverside.

As much as Middlesbrough have had the ball, Bristol City are still in this.

Another change for Bristol City as Sam Morsy makes way for Tomi Horvat.

The resulting corner falls to a free Luke Ayling but he puts his header wide of the post.

Decent chance that.

Coventry defender Luke Woolfenden is booked for a high boot.

Looked a little harsh that one as Woolfenden played the ball.

Sky Blues assistant Joe Edwards also receives a yellow card for some protestations from the bench following that decision.

Into the last 10 minutes of normal time and Charlton are really going to step this up to get anything from this game, they haven't created anywhere near enough.

The Addicks have had just two shots in the entire match so far and have not tested Jamie Donley in the Oxford goal.

Image source, PA Media

David Strelec is through on goal but Radek Vitek stands tall to thwart him.

Strelec should be scoring but it seemed like he just delayed it.

Victor Torp's first act is to whip an aimless ball into the box from the left which Daniel Peretz easily claims.

Coventry will have to be much more inventive than that if they are to grab an equaliser in the final 11 minutes plus additional time of this one.

Bristol City boss Gerhard Struber makes his second switch of the game as Max Bird comes on for Scott Twine.

Stanley Mills goes into the book for a tackle from behind on Luke Chambers.

Will Lankshear and Jamie Donley come off for the U's and are replaced by Brodie Spencer and Nik Prelec.