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
History of Celtic F.C. (1994–present) best for the future." Norwegian Ronny Deila was appointed manager of Celtic on 6 June 2014. He signed a 12-month rolling contract with the club, with former Celtic midfielder and Scotland international John Collins appointed as his assistant. After going unbeaten on a pre-season tour in Austria, Deila's first competitive match as manager of Celtic, a Champions League qualifying tie away against KR Reykjavik on 15 July 2014, ended in a 1–0 win with midfielder Callum McGregor scoring the decisive goal on 84 minutes. Celtic eased to a 4–0 win in the return match in Scotland, but were comprehensively beaten