Complex sentence: Slater made his debut for the Derbyshire team in July 1907 against Nottinghamshire where opening the batting with captain Levi Wright he scored 21 in his first innings.
Split into simpler sentences: Slater made his debut for the Derbyshire team in the 1907 season against Nottinghamshire in July. He opened the batting with captain Levi Wright and scored 21 in his first innings.