Complex sentence: Then, in Pune's very next match, against Mohun Bagan, Haokip scored his first professional goal, scoring the opener for Pune in the 72nd minute as the club went on to win 2--0.
Split into simpler sentences: Then, in the very next match, against Mohun Bagan, Haokip scored his first professional goal. His 72nd minute goal opened the scoring for Pune as the club went on to win 2--0.