Complex sentence: A goalkeeper, Jimmy O'Neill joined Everton from junior football in Ireland in 1949 and played in the 1953 FA Cup semi-final and shared the goalkeeping duties with Harry Leyland during the promotion campaign of 1953-54.
Split into simpler sentences: A goalkeeper, Jimmy O'Neill joined Everton from junior football in Ireland in 1949. O'Neill played in the 1953 FA Cup semi-final and shared the goalkeeping duties with Harry Leyland during the promotion campaign of 1953-54.