Jimmy Thelin has “nothing to say” about people who suggest Aberdeen are yet to be tested, as his side prepare to face Celtic away from home this weekend. The Dons have won every game in all competitions this season and are only being kept off top spot in the Scottish Premiership by the goal-scoring record of their opponents this weekend. Despite the Dons’ relentless form, some have suggested they have yet to play a top team this campaign, and that’s something manager Thelin has dismissed.