Laurent Blanc had admitted Zlatan Ibrahimovic's tattoos were for a good cause but it cost his team a yellow card during the match. (1:14)

Paris Saint-Germain defender David Luiz has said he believes he is now worth more than 50 million pounds.

The Brazil international -- who joined the Ligue 1 champions from Chelsea for that amount in the summer -- is preparing to face his old club in the Champions League at the Parc des Princes on Tuesday night.

The size of the fee, a world record for a defender, raised some eyebrows -- but Luiz feels he has offered PSG value for money.