Complex sentence: Bloomfield made his debut at the start of the season, against Everton on August 25,1954, though he only played 19 times that season, and it wasn't until 1955-56 did he become a first-team regular.
Split into simpler sentences: Bloomfield made his debut at the start of the season, against Everton on August 25,1954, though he only played 19 times that season. It wasn't until 1955-56 did he become a first-team regular.