New Delhi, Oct. 22 -- Five goals, two red cards and two penalties. The first half of Bayer Leverkusen vs. Paris Saint-Germain in the Champions League on Tuesday was wild.

Defending champion PSG went on to win 7-2 to top the standings on goal difference, but it was a breathtaking first half at the BayArena that stood out.

Luis Enrique's was 4-1 up at halftime in Germany, with the action relentless from the moment William Pacho gave the visitors the lead with a seventh-minute header.

What followed was chaos, with both teams reduced to 10 men and Leverkusen awarded two penalties.

Alex Grimaldo failed to score with the first - hitting the post in the 25th.

Eight minutes later Leverkusen captain Robert Andrich was shown a straight red fol...