Complex sentence: Zahavi acted as a broker to Media Sports Investments, the group headed by Kia Joorabchian, a friend of Zahavi's, that attracted considerable attention for its involvement with Corinthians in Brazil and its third-party ownership of players, particularly Carlos Tevez.
Split into simpler sentences: Zahavi acted as a broker to Media Sports Investments, the group headed by Zahavi's friend Kia Joorabchian. MSI attracted considerable attention for its involvement with Corinthians in Brazil and its third-party ownership of players, particularly Carlos Tevez.