Complex sentence: He scored nine goals in 44 games in 1919--20, and was in the cup winning sides of 1920, but was sold on to Newcastle United for £2,500 in May 1920, which was considered a bargain at the time.
Split into simpler sentences: He scored nine goals in 44 games in 1919--20, and was in the cup winning sides of 1920. He was sold on to Newcastle United for £2,500 in May 1920, which was considered a bargain at the time.