Argentina coach Gerardo Martino has confirmed that Angel di Maria will undergo tests after picking up a knock during the team's defeat to Portugal earlier this evening.
Manchester United's record signing needed a lengthy spell of treatment after colliding with club teammate Nani during the 1-0 defeat at Old Trafford.
After confirming that the midfielder will be evaluated, Martino added: "We don't think it was anything serious but it was quite a tough blow."
Di Maria was able to continue playing for 15 minutes after the collision before being substituted.
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