Clachnacuddin will face Brora Rangers in the final.
The 19-year-old made his senior debut for the top flight outfit in the League Cup group stage at the start of this season.
Two goals in his last two games have gone some way to making an early impact at Dudgeon Park.
The Cattachs go into their first round tie against Cumnock Juniors off the back of a surprise defeat to Deveronvale in the Highland League last week.
Sutherland are one of three teams who could still become champions going into the final round of matches.
Can they win the trophy for a second time?
Sutherland will be gunning for silverware in Golspie this Saturday.
North coast club clinch trophy.
Steven Mackay is free to occupy the Brora Rangers dug-out tomorrow after last weekend’s post-match red card was mysteriously rescinded.
Saturday will see north-west Sutherland league contenders Melvich lock horns with guest club Mallard FC of Dingwall in the final of the Mackay Cup.