Complex sentence: Maradona could not show his skills along the tournament, suffering the roughness from rivals (specially Claudio Gentile in the game against Italy) in most occasions, although he would be sent off by the referee after kicking Brazilian player Joao Batista in the groin.
Split into simpler sentences: Maradona could not show his skills during the tournament, suffering from the rough play of rivals (especially Claudio Gentile in the game against Italy). He would eventually be sent off by the referee after kicking Brazilian player Joao Batista in the groin.