Scottish Cup: Fourth substitute to be available in extra time
A fourth substitute will be available in extra time for the first time in this season's Scottish Cup.
The experiment will begin when the first round takes place on Saturday 24 September.
It is an initiative being introduced by the Scottish FA after recent talks with the International Football Association Board.
Previously, teams could only use three of seven substitutes in Scotland's premier cup competition.
The fourth replacement will only be available if a tie is level after 90 minutes and goes to extra time.
There are no plans for the format to be introduced by the Scottish Professional Football League, but it could be used in next season's League Cup in Scotland.
The SFA announced the extra substitute plan as Hibernian captain David Gray made the first-round draw at Edinburgh College.
One preliminary-round tie remains to be played without the availability of an extra substitute after Scottish Junior Cup winners Beith Juniors and West Superleague champions Auchinleck Talbot drew 2-2 at Bellsdale Park on Saturday.
Talbot host their West Superleague rivals this coming Saturday with Highland League outfit Strathspey Thistle now preparing for a journey south to face the victors.
East Superleague champions Bonnyrigg Rose and North Superleague champions Banks O'Dee both face a trip to the Highlands to face Turriff United and Keith respectively.
East of Scotland champions Leith Athletic host Cumbernauld Colts, who finished fourth in last season's Lowland League.
Scottish Cup first-round draw
Beith Juniors or Auchinleck Talbot v Strathspey Thistle
BSC Glasgow v Rothes
Civil Service Strollers v Hawick Royal Albert
Clachnacuddin v University of Stirling
Dalbeattie Star v Wick Academy
Deveronvale v Gretna 2008
East Kilbride v Vale of Leithen
Edinburgh University v Whitehill Welfare
Forres Mechanics v Lossiemouth
Fort William v Brora Rangers
Gala Fairydean Rovers v Fraserburgh
Girvan v Huntly
Inverurie Loco Works v Buckie Thistle
Keith v Bank's O'Dee
Leith Athletic v Cumbernauld Colts
Nairn County v Preston Athletic
Selkirk v Linlithgow Rose
Turriff United v Bonnyrigg Rose
Ties will be played on Saturday 24 September.