Celtic will be visiting Tannadice next season after Dundee United’s return to the Scottish Premiership was confirmed on Friday night. United needed just a single point against Airdrie to confirm their Scottish Championship title win, though it was all but guaranteed thanks to their enormous goal difference advantage over second-placed Raith Rovers. A 0-0 result on the road has ensured Jim Goodwin brings the Arabs up at the first time of asking and Celtic will now visit both Dens Park and Tannadice in Dundee next term. Livingston look sure to be the side to be replaced at the bottom of the Prem…