Former Celtic manager Martin O'Neill says his old club "needs a strong Rangers" if they are to compete in Europe.
Scottish Cup Football
Craig Gordon says Celtic's unprecedented successive domestic Treble will ensure the players attain legendary status.
Celtic boss Brendan Rodgers says he will "push his side even harder" next season after sealing a second straight domestic Treble.
Scott Brown says he has relished proving his doubters wrong by captaining Celtic to back-to-back Scottish Treble.
Audio & Video
Watch some of the best bits of the 2017-18 season in Scottish football (UK users only).