Complex sentence: During his formative phase he had to endure many hardships--lack of proper diet, monetary constraint and supporting the family in their daily struggle for existence.However the spirit of a sportsman never leaves him during the hard time.
Split into simpler sentences: During his formative phase he had to endure many hardships--lack of proper diet, monetary constraint and supporting the family in their daily struggle for existence. However, the spirit of a sportsman never leaves him during the hard time.