#2 Sergio Aguero
Aguero scored his side's only goal in the match against Iceland. As proven in the English Premier League, the striker is extremely lethal in the box and is a great finisher. If Croatia wants to win, they would have to keep Aguero quiet.
The Argentine can find the net easily. Last season, he scored an average of 0.84 goals per match and had a shooting accuracy of 45 percent.
While the player did not score more during the opening match, it should be noted that he has scored in each of his last two matches for his nation. After making 85 appearances, the 30-year-old has scored 37 goals.
Over the last two editions of the World Cup where Aguero did participate, the Argentine had failed to find the net. His goal against Iceland was his first in the competition. It could encourage him to score more and power his side to the Round of 16.