At the same time, however, the Bhoys forward hopes to one day achieve similar heights to the Barcelona great.
Roberts has made a promising start to life at Celtic after joining on loan from Manchester City.
And he was speaking to reporters on Friday afternoon about recent comparisons between him and Messi:
PR on comparisons with his idol Messi: "Everyone knows I enjoy watching him and how I idolise him. Doesn't bother me at all." (MH)— Celtic Football Club (@celticfc) April 8, 2016
PR: "He's extraordinary, the greatest player I've ever seen. Got to believe to achieve & hopefully one day I can reach those heights." (MH)— Celtic Football Club (@celticfc) April 8, 2016
After a topsy-turvy season, Celtic fans have some hope going into the summer.
The Scottish Premiership is the Bhoys' to lose, while Roberts is a source of great excitement ahead of next campaign.
Celtic still have a huge cup clash against Rangers, of course, and defeat there would signal a massive blow.
When it comes to their thoughts for the season, Celtic fans may well view the whole campaign differently if they lose to the Gers. But victory, at the same time, and perhaps a league - cup double would be a massive consolation for disappointment earlier in the year.