Complex sentence: After missing the start of the season with injury, he made his debut on 18 October in a 0--1 home loss to Delhi Dynamos FC; on 4 November, he left due to personal reasons.
Split into simpler sentences: After missing the start of the season with injury, he made his debut on 18 October in a 0--1 home loss to Delhi Dynamos FC. On 4 November, having only played once for the team, he left due to personal reasons.