If Charlton come away from this game without conceding a goal they have a lot to thank Patrick Bauer for.

The rangy German centre-back has made a number of key interceptions and has read the game really well.

Close. A well-worked free kick from the byline from Shrewsbury is sent back to Jon Nolan on the right corner of the 18-yard box, but his curling ball in evades everyone.

Shrewsbury starting to get on top here.

Image source, PA

Free kick on the left for Shrewsbury - Shaun Whalley floats it in but Charlton deal with it well.

Jon Nolan breaks down the left for Shrewsbury, good defending to block out his ball for a corner.

Can Shrewsbury continue to be threatening from balls into the box? Almost - Ben Amos is forced to punch away under extreme pressure and it is out for a throw in.

Here is that first change - and it comes from Lee Bowyer.

Stephy Mavididi comes off to be replaced by another winger in Tarique Fosu.

We could do with a goal now.

It's gone a little bit flat in the past 10 minutes or so, despite the excellent vocal support from the Charlton fans.

Time for a change from either Paul Hurst or Lee Bowyer?

Image source, PA

Chants of 'Lee Bowyer's red and white army' are ringing around The Valley now as the home supporters try to spur their side on.

Shrewsbury goalkeeper Dean Henderson is down having a bit of treatment after an aerial coming together, but he looks to be OK.

Chelsea loanee Jay Da Silva has had a couple of really nice touches at left-back for Charlton.

The 20-year-old has been at The Valley on loan all of this season, having spent a chunk of last season also in south east London.

Rob: Completely in favour of the National League play-off system. More teams involved so fewer dead-rubbers at the end of the season but maintaining integrity by giving an advantage to the league's top teams.

Julian Edwards: The teams in third and fourth should get the nod if the scores are tied after 180 minutes of the "semi final". Finishing the regular season with more points than fifth and sixth should count for something.

Get in touch using #bbcefl on social media.

Alex Rodman makes a great run through the middle for Shrewsbury, plays a nice ball to Carlton Morris out on the right flank, but the striker's cross is a poor one and it goes out for a throw on on the opposite side.

Solid start for Shrewsbury here.

Image source, Rex Features

Shrewsbury have had all the possession at the start of this second period.

Omar Beckles tries to float a ball in over the Charlton defence but it runs on to Ben Amos in the home goal.

Time for the second half of this opening EFL play-off game of 2018 to get under way.

No changes from either side at the break.

Can either side make a breakthrough? Stick with us here at BBC Sport to find out!

Charlie Phillips: Charlton fan - regardless of the result tonight, it's great to finally see us play such an impressive style of football. The new-found passion and discipline are testament to everybody involved with the club: from fans to coaching staff.

Tom Griff: Here supporting Shrewsbury and I’ve managed to watch a good 10 minutes so far. This is torture!

That's what the play-offs are all about! Great for the neutral, horrible if your team's involved.

The two teams are back out on the field and we're about to get under way again in the second period.

Four pieces of EFL managerial movement to tell you about...

Championship club QPR have parted company with boss Ian Holloway. Holloway's second spell as manager at Loftus Road ended with Rangers finishing 16th in the second tier.

Ryan Lowe was unable to keep Bury in League One during his time as interim boss, but he will have the chance to try to get the Shakers out of the fourth tier after being appointed full-time manager today.

Phil Brown is staying with League Two club Swindon. The former Derby and Hull manager has signed a new two-year contract at the County Ground.

And Martin Allen is leaving Barnet following their relegation from the fourth tier last weekend. Allen began his fifth spell in charge of the Bees in March and almost performed a miracle by keeping them up, but their drop into the National League was confirmed on Saturday.

Image source, Getty Images

This is the first on 15 EFL play-off matches between now and the season's conclusion on Monday, 28 May.

For a full list of play-off fixtures, click here.

You will be able to follow live text coverage of every play-off match on the BBC Sport website and app, including all three Wembley finals.

Craig Smith: I think the National League play-off system is better than the EFL. Teams in third and fourth should have clear advantage, which I don’t think you get over two legs.

Interesting - six teams are contesting this season's National League play-offs, with the sides finishing in the top two play-off positions needing to play one fewer match to make it to Wembley.

Thoughts? Get in touch using #bbcefl on social media.

So an intriguing and entertaining first half ends goalless at The Valley.

Both sides have had decent chances but neither have been able to land a decisive blow after 25% of this League One play-off semi-final.

Image source, Rex Features

A Shrewsbury corner manages to evade almost everyone in the box until Charlton can hack it clear.

End to end stuff here - we just need a goal.

We have one additional minute to find one.....

Stephy Mavididi gets some more joy down the Charlton left and Toto Nsiala is forced to hack it away for a corner.

Josh Magennis' header flashes across the face of goal for Charlton - Jason Pearce is a metre or so away from getting on the end of it. Close.