Just seen that Mascherano handball. That's a stonewall penalty. Knew it would be that kind of game when Matuidi was booked almost immediately for absolutely nothing.
It's not a penalty, you have to be kidding. PSG had a similar one in their own box before that and it wasn't called either. Both hand balls were from close range and with normal body positioning. Mascherano was doing a sliding tackle, you can't slide with your hands glued to your body.