The Celtic forward impressed on Saturday afternoon.
Roberts netted a brace as the Bhoys came back from 1-0 down to beat Hearts 3-1 at Parkhead.
And the 30-year-old Brighton goalkeeper congratulated him on social media, even comparing him to Lionel Messi.
Brighton themselves were involved in a four-goal clash on Saturday, drawing 2-2 with Burnley in the Championship.
Celtic's two-goal win leaves them seven points clear of Aberdeen at the top of the Scottish Premiership.
Hearts, meanwhile, are now 16 points behind the Hoops.
Roberts' first goals for the Scottish champions are no doubt a welcome boost for Ronny Deila and he may well star at Celtic next season after finding his feet during the current campaign.
Roberts, of course, is on loan from Manchester City on an 18-month deal, with his parent club winning 4-0 at Bournemouth this weekend.