Born in St Helens, Case started his professional career at Warrington, joining the club from local side Blackbrook in 1975.
[5] Case played at second-row in Warrington's 14–16 defeat by Widnes in the 1978–79 John Player Trophy Final during the 1977–78 season at Knowsley Road, St. Helens on Saturday 28 April 1979.
Case played at prop in Warrington's 26–10 victory over Wigan in the 1980 Lancashire Cup Final during the 1980–81 season at Knowsley Road, St. Helens, on Saturday 4 October 1980 He played at prop in the 12–5 victory over Barrow in the 1980–81 John Player Trophy Final during the 1980–81 season at Central Park, Wigan on Saturday 24 January 1981.
[13] He played at prop in Wigan's 18–26 defeat by St. Helens in the 1984 Lancashire Cup Final during the 1984–85 season at Central Park, Wigan on Sunday 28 October 1984, appeared as a substitute (replacing Fullback Shaun Edwards) in the 34–8 victory over Warrington in the 1985 Lancashire Cup Final during the 1985–86 season at Knowsley Road, St. Helens, on Sunday 13 October 1985,[14] played at prop in Wigan's 15–8 victory over Oldham in the 1986 Lancashire Cup Final during the 1986–87 season at Knowsley Road, St. Helens, on Sunday 19 October 1986,[15] and played at prop in the 28-16 victory over Warrington in the 1987 Lancashire Cup Final during the 1987–88 season at Knowsley Road, St. Helens, on Sunday 11 October 1987.
[16] Case played at prop in the 18–4 victory over Warrington in the 1986–87 John Player Special Trophy Final during the 1986–87 season at Burnden Park, Bolton on Saturday 10 January 1987.