David Luiz and Branislav Ivanovic have a bit of a push and shove in the tunnel at the break as Chelsea do make a change. As we thought, Oscar was walking the tightrope too nervously for Jose Mourinho's liking, so Willian is on.

John Terry made the most passes for Chelsea in the first half. That tells you where the game has been played out so far.

Keegan Porter:, external Video assistance might help, but anyone who's seen American football knows it's a slippery slope.

Conor McMeekin:, external How long can Fifa go on refusing technology introduction? Big calls going wrong literally every single game these days.

OptaJean:, external Zlatan Ibrahimovic has picked up his fourth red card in the Champions League, the most in the competition alongside Edgar Davids.

OptaJean:, external PSG have won four of their previous five games after having received a red card in the Champions League.

One shot on target in the first half, a tame one from 20 yards from Oscar. It's not often you can make this comparison, but the PSG game reminds me of the Chelsea - Burnley game so far.

Have PSG got a Ben Mee on the bench?

John in Isle of Wight: The petition to have Zlatan reinstated for the second half starts here.

Rich in Limehouse: Watching this just makes me think how far the Premier League has fallen. Its best team is now an average European one. Oh how the mighty etc.

Like the Champions League tie at Stamford Bridge, the north-west derby in the Championship is also goalless. The difference is that it hasn't been half as feisty.

Blackburn, who are aiming to move into 10th place, have been hampered by two first-half injuries to Corry Evans and Markus Olsson. However, they almost took the lead seconds before the break when Ben Marshall headed over from close range.

Bolton have been neat and tidy without creating many clear sights of the home goal. Adam Le Fondre has gone closest with a low drive as the Trotters look to give themselves more breathing space from the relegation zone.

Blackburn Rovers 0-0 Bolton Wanderers

Image source, AFP

Shakhtar's red card against Bayern Munich tonight was the fastest in Champions League history by the way.

BBC Radio 5 live Sport presenter Mark Chapman:, external What a horrible horrible half of football that must have been to referee.

Daily Telegraph football correspondent Henry Winter:, external Extra officials behind goal not doing much. Costa elbowed by Luiz. Cavani tripped Costa. Both offences missed. Video technology needed.

TV replays to come in? Surely only a matter of time.

Or are you in the camp of keeping technology out of the game?

Get in touch at #bbcfootball, external, pop on to the BBC Sport Facebook page, external or BBC Sport's Google+ area., external

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Image source, PA

Football writer Amy Lawrence: "People at home with a TV took a few seconds to see Zlatan not a red and Costa a pen. But Fifa still won't trial video assistance for refs..."

Gary Lineker
Former England captain

"The referee may be useless! That was a clear penalty. But technology clears both decisions up. They need help."

Mark Lawrenson
Former Liverpool defender, BBC Radio 5 live

"I suggest what happens now is both managers sit their players down and say 'nobody gets sent off now'. Nothing really happened with the football. As a game it's intriguing but not great."

It has the feeling of more cards to come, so a reminder of who else has been booked so far.

Oscar was booked for Chelsea and left a few tackles in elsewhere. He could come off before he is sent off.

For PSG, Thiago Motta and Blaise Matuidi are on a yellow. Stay on your feet!

PSG look rattled at the back, they never get organised at a free-kick and Chelsea have a man over. John Terry has a free header - but Marquinhos just about gets it out.

I'm with you Paul Moore - PSG to win this on the break. Jose Mourinho to implode.

Paul Moore:, external This will finish 0-1 PSG. 10 v 9 players. You heard it here first.