if roy of the rovers made a comeback as a defender, he would be an all action brazilian with electric hair, have 65million instagram followers and call them all ‘geezers’ the new comic book star would score a magnificent booming header against his former team, celebrate with a screaming knee slide, scrap with the evil baddie of the opposition (diego costa) and finish the struggle victorious, shaking hands with the ground staff before exiting for his next adventure the problem for the script writers, if they were to copy the life and times of david luiz, is that they would have no idea what david luiz was going to do next, so what chance do the opposition – or his team mates – have? david luiz jumps for joy after his bullet header forced the game in to extra time on wednesday night  luiz celebrates victory with team mates thiago motta (right) and maxwell at the final whistle  when you expect luiz to be heading it clear, he’s chasing the glory, when you expect him to be chasing the glory, he appears from nowhere to head it clear losing 7 0 in a world cup semi final, he still thinks he can get a goal back maybe a second who knows? a hat trick on that occasion it finished 7 1 and the one man reconnaissance mission broke down, leaving gaps behind him for the german team to exploit would it change his approach? of course not even on wednesday night, with paris saint germain drawing 2 2 at chelsea with minutes remaining and set to go through with 10 men on away goals, he turned up on the right wing to collect the ball and retain possession luiz looks on in disgust as germany celebrate one of their seven goals in last summer's world cup semi final  he’s a defender who sees defending as a part time job so concerned was laurent blanc, a world cup winning centre back with 97 caps, which suggests he knows a bit about defending, that he played luiz in midfield in the first leg, with two centre backs behind him for cover he was back in the back four for the second leg and, when it works, it works spectacularly who else could have got them through when their talisman, zlatan ibrahimovic, had been sent off? luiz could have been sent off too for his feuding with costa, but instead he rose majestically in the land of the giants that is chelsea’s penalty area to send a thunderball of a header into the roof of the net the defender stumble backwards after one of many confrontations with diego costa on wednesday night  to get ahead of john terry, gary cahill or his marker branislav ivanovic takes great skill, movement and courage but to meet the ball with such ferocity… maybe there’s more to luiz than his sideshow bob nickname and carefree style then came the celebration not just a former player quietly enjoying the moment against the club that sold him, but a full pelt emotional surge of joy he said he wouldn’t celebrate on his first return to stamford bridge, but who can blame him for loving the moment? it was a goal worth celebrating chelsea sold him because they thought the deal was too good to refuse and, presumably, because they thought terry and cahill could do the job better few can argue with that – terry, especially, has been magnificent as a defender this season but can he hit a dipping, swerving free kick, cristiano ronaldo style, from more than 30 yards, as luiz did on wednesday night? jose mourinho has a word with luiz on the touchline as psg manager laurent blanc watches on  luiz rises to beat branislav ivanovic to thiago motta's corner and head home psg's equaliser  not everyone is a luiz fan – jamie redknapp wrote on this website that ‘whoever struck the deal to sell luiz for £50m deserves a knighthood’ and, as chief sports writer martin samuel reported, jose mourinho thought luiz was too much of an optimist as a defender samuel wrote: ‘mourinho wanted miseries at the back he wanted players who feared the roof was about to fall in, the move was going to break down, a counter attack was only a stray pass away luiz wasn’t like that he roamed, he left gaps, he charged upfield and if that break went wrong he thought it wouldn’t matter he didn’t check for danger, he was rarely alarmed luiz was too much of an optimist to defend properly’ the optimist will make mistakes he will raid upfield when he should be focussing on shutting the door, but he had a lot of fun at stamford bridge on wednesday night and he’s still in the champions league luiz has a moment of reflection as psg progress to the quarter finals of the champions league 
david luiz psg chelsea the champions league luiz 50million luiz to psg stamford bridge
david luiz starred as psg knocked chelsea out of the champions league . luiz scored late equaliser with a bullet header to force game into extra time . chelsea sanctioned the £50million sale of luiz to psg last summer . luiz celebrated wildly despite playing at his former stamford bridge home . read: luiz says sorry for celebrating after scoring against chelsea . click here for the latest chelsea news and reaction to wednesday night 