2008-07-24: Cardiff City 1-0 Celtic, Algarve Challenge Cup, Faro – Pictures – The Celtic Wiki

1977-05-07: Celtic 1-0 Rangers, Scottish Cup Final – Pictures – The Celtic Wiki

Jota of Celtic celebrates after scoring their team's second goal News Photo - Getty Images

Celtic star Stephen Welsh attracts transfer interest as 'Porto join race for Hoops defender

Celtic 4-0 St Mirren: Kyogo Furuhashi nets brace as Liel Abada and David Turnbull also score in comfortable victory, Football News

2008 – The Celtic Wiki

2008-07-24: Cardiff City 1-0 Celtic, Algarve Challenge Cup, Faro – Pictures – The Celtic Wiki

Papa Francesco Ale”, “PSG and Celtic have regularly fraternized for 25 years, it continues again tonight”

1977-05-07: Celtic 1-0 Rangers, Scottish Cup Final – Pictures – The Celtic Wiki

2007 – The Celtic Wiki

93 Cardiff City V Celtic Algarve Challenge Cup Stock Photos, High-Res Pictures, and Images - Getty Images

1927-10-03: Celtic 4-1 Cardiff City, Friendly – The Celtic Wiki