At the midpoint of FIFA World Cup qualifiers in South America, it's time to give each team a letter grade from A to F based on their performances so far.

On a night where Lionel Messi stole the headlines with a wondrous performance for Argentina, the likes of Colombia and Brazil also picked up some fantastic results.

A fourth straight loss in World Cup qualifying for Brazil last week could have meant the beginning of the end for coach Júnior, who took over only in January.