The big game of the weekend sees League leaders Celtic make the long trip north to take on Ross County in Dingwall on the Sunday afternoon. The champions have won on each of their last three visits to Victoria Park and will be favourites to make it four in a row. On the Saturday, League positions will go out the window when title-chasing Aberdeen entertain bottom club Dundee United in an east coast derby that is always keenly contested. Hearts, themselves with renewed hope of challenging at the top, entertain Hamilton Accies, while Dundee will be hoping for just a third home win of the season when they face Partick Thistle. Elsewhere, Motherwell host Inverness CT and Kilmarnock travel to St Johnstone. Also, selected Championship coverage.