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
2010 Celtic League Grand Final 2010 Celtic League Grand Final The 2009–10 Celtic League Grand Final was the final match of the 2009–10 Celtic League season. The 2009–10 season was the fourth sponsored by Magners and was the first ever Celtic League Grand Final. The final was won by the Ospreys who defeated Leinster by 17–12 at the RDS Arena to win their third Celtic League title, the win ended Leinster's 20-month unbeaten home league record. First half tries from Tommy Bowe after twenty minutes and Lee Byrne after thirty five minutes which were both converted put the Ospreys 3–14 up at half time, with