No way thats a red, cause
1. Your punishing nani for going for the ball
2. Like JuveJay said he was trying to bring down the ball
3. Nani's leg was up first arbeloa clearly was running through, he know what would happen
Oh and add the fact that Nani was clearly looking at the ball the whole time, wasn't like De Jongs challenge where he could see Xabi Alonso