Complex sentence: Macdonald is Newcastle United's fifth highest goalscorer of all-time of whom also won two of the Football League First Division, now known as the Premier League's Golden Boots with Newcastle in 1975 & in 1977 for Arsenal as well.
Split into simpler sentences: Macdonald is Newcastle United's fifth highest goalscorer of all-time. He also won two of the Football League First Division, now known as the Premier League's Golden Boots with Newcastle in 1975 & in 1977 for Arsenal as well.