History of Celtic F.C. (1887–1994) As the season progressed, Frank McAvennie arrived from West Ham and young forward Joe Miller – a very promising prospect – was signed from Aberdeen. This new-look Celtic side, captained by Roy Aitken, quickly gelled and embarked on a 31-game unbeaten run, culminating in a historic League Championship and Scottish Cup double win in the club's centenary season. Walker and McAvennie forged a successful partnership up front whilst Paul McStay enjoyed his finest season, winning both the SPFA and Scottish Football Writers player of the year awards. Celtic clinched the league title on 23 April 1988 with a 3–0 win
2017–18 Celtic F.C. season Celtic would face Rosenborg (Norway) in the Third Qualifying Round of the UEFA Champions League. The Norwegian champions overcame Dundalk to set up their first meeting with the Scottish champions since the 2001–02 UEFA Champions League group stage. In October 2001, an Alan Thompson free-kick secured a 1–0 victory for Celtic in Glasgow. Later that month, Martin O'Neill's team succumbed to a 2–0 defeat in Trondheim, with former Celtic player Harald Brattbakk scoring both goals. Brendan Rodgers' side were forced to play without a recognised striker in the first leg, which finished goalless. Injuries to Moussa Dembélé and Leigh Griffiths