Uruguayan football club Nacional's defender Juan Izquierdo collapsed on the pitch and had to be taken to the hospital for treatment during the second leg of the Copa Libertadores Round of 16 encounter against Sao Paulo at Brazil's Morumbi Stadium on Thursday. The incident took place in the 84th minute of the match after Izquierdo replaced Sebastian Coates for Nacional at half-time. The footballer fell to the ground unconscious as his teammates rushed towards him to stop him from falling. The game was halted immediately and player from both teams called for quick medical assistance for the footballer.