Dani - won the ball countless times, and stopped most attacks on his side when he was there to defend. Crosses were better than usual.
Mascherano - the main culprit for the third goal but apart from that he won the ball several times and blocked dangerous shots, being very active in defense
Neymar - scored brilliantly but apart from that he wasn't very successful despite having a number of opportunities
HM: Messi, who came incredibly close to scoring and could've had an assist if Neymar had scored that low cross. Worked well in defense, for someone of his status. Some bad passing though.