Craig Gordon says Celtic have proved they are not inferior to the elite clubs in the Champions League.
The goalkeeper says his team have learned valuable lessons which they can carry into their domestic form and next year's European qualifying campaign.
He is adamant, though, that Celtic have shown their worth in the competition, despite finishing bottom of Group C.
"Our performances have been good enough. We can compete at this level," Gordon, 33 said.
"There's nothing I've seen in any of the games that suggest we're inferior to anyone else in our group."How can finishing bottom of the group mean anything other than that Celtic are indeed inferior to the rest of the group?