Scott McDonald famously played for both Celtic and Motherwell, the less said about that the better.
But he has taken to Twitter to offer his congratulations to Celtic and fellow countryman Tom Rogic.
McDonald scored some belters for Celtic against Oldco Rangers and got a magical assist against AC Milan.
The latter of those was in the Champions League somewhere Celtic will be returning to next season.
Good luck Tom Rogic, forever a Celt.