Complex sentence: Celtic toiled for the first few post-war years under McGrory, and narrowly avoided relegation in 1948, but in April 1951 a John McPhail goal saw Celtic defeat Motherwell 1-0 in the Scottish Cup Final for the club's first major trophy since the war.
Split into simpler sentences: Celtic toiled for the first few post-war years under McGrory, and narrowly avoided relegation in 1948. In April 1951 a John McPhail goal saw Celtic defeat Motherwell 1-0 in the Scottish Cup Final for the club's first major trophy since the war.