Wark made his debut for the club on 31 March 1984 in a 2–0 league win against Watford at Vicarage Road, and scored Liverpool's opening goal in the 58th minute. Liverpool won the English league title that season, and Wark made sufficient appearances to earn himself a medal. His unusual ability as a goalscoring midfielder was on display when he finished the 1984–85 season as the club's top goalscorer, ahead of prolific striker Ian Rush, with a tally of 27 goals in 62 appearances—a goal every 2.3 games. Wark's season included three hat-tricks, one each in the League, the FA Cup and the European Cup. Liverpool qualified for the 1985 European Cup Final but the match was overshadowed by the Heysel Stadium Disaster, a tragedy Wark remembers as "a nightmare memory".