Celtic will prepare for next season and their Champions League group stage return with a summer camp in Austria.
And that will be followed by Parkhead friendly games against English Championship sides Blackburn Rovers and Norwich City.
The Hoops travelled to Austria - which included a friendly against Switzerland in St Gallen - under Neil Lennon in 2019 and laid the foundations for their historic nine-in-a-row campaign which also saw them complete an unprecedented fourth successive domestic clean sweep.
