Was watching a replay of this on ESPN3, and have attached the highlights from the match. The highlights show the PK being converted about 75 minutes in by Bayern, then after (about 2:10 of the attached highlights) we see the call by the referee that resulted in the penalty. Having seen it game speed, it was a helluva sell by the Bayern player. Still...maybe AR1 could have seen the lack of contact? Maybe not, he was likely running for the line. For your viewing enjoyment:
Not sure I see the complaint The defender makes a reckless challenge. The fact that the attacker somehow managed to avoid having his ankle shattered does not negate the reckless challenge.