Complex sentence: Richardson was a gifted sportsman and excelled in other sports besides cricket and Australian rules football, including baseball (national and state representative), golf (state representative), tennis (state title winner), lacrosse, basketball and swimming.
Split into simpler sentences: Richardson was a gifted sportsman and excelled in other sports besides cricket. His other sports included baseball (national and state representative), golf (state representative), tennis (state title winner), lacrosse, basketball and swimming.