Difficult to say. Rugani gives his man a bit of space, making the lay-off too easy, Gatti also doesn't fill the hole behind him and that makes Kalulu take a step in that direction to cover. All just a bit to laid back to hold a tight defence. But I also wouldn't blame Kostic here. If he doesn't tackle and Samardzic scores there, we're all yelling what's wrong with him...
I'll give them the benefit of doubt, we were a man down in defence and hadn't made a sub to fix it. Kalulu gets caught in no man's land but I think he was trying to cover both RCB and CB.
