Celtic legend Frank McGarvey has shared his concern that the Hoops will neglect the importance of doing well in Europe once again.
The Bhoys have been ruthlessly dominant in domestic competitions, having won the Scottish Premiership title for the eighth consecutive seasons.
In fact, they have won the domestic treble three times in a row, and are strong favourites to replicate that achievement once again.
While Celtic have been really dominant on the domestic front, the Bhoys have not been able to stamp their authority in European games.
This season, Celtic could not even make it to the Champions League group stages.