Roma rock Barca from two down

Roma scored three goals in eight minutes as the Serie A side twice came from behind to stun Malcom and Barcelona 4-2 at the International Champions Cup.

All eyes were on Malcom after he opted to join La Liga champions Barca, who dramatically Roma's €40million deal to sign the Brazilian last week.

Malcom -- who was preparing to fly out to the Italian capital after Roma reached an agreement with Bordeaux before Barca stepped in at the last minute -- was in the thick of the action on Tuesday, scoring the easiest of goals to put the Spanish giants 2-1 up.

Unmarked at the back post, the 21-year-old's tap-in four minutes into the second half restored Barca's lead after Stephan El Shaarawy cancelled out Rafinha's opener.

But Roma completed a late comeback -- Alessandro Florenzi equalising in the 78th minute before quick-fire goals from Bryan Cristante and Diego Perotti turned the match on its head.

Malcom's performance earned praise from coach Ernesto Valverde, who said: "He is a player that relates well with the game. He is a strong player who can get between the lines and it is difficult to move him."