David Luiz plays by his own rules.
When PSG were awarded a free-kick outside the Chelsea area near the end of the first-half, centre-back-come-midfielder/general mad man David Luiz decided that he did not agree with the referee's placement of the ball, and subsequent vanishing spray, so he decided that he could do a better job.
If the ref caught him doing that he might have been in a bit of trouble, those refs are very prescious over their vanishing spray. Ibrahimovic did nothing with the free-kick, by the way.
via @JamesMawFFT