The big boys have entered the Scottish Cup as the road to Hampden picks up pace.
But there will be plenty of lower league sides out to claim a scalp on Saturday as ties take place around the country.
Hearts travel to a junior side with a knack for causing an upset in the shape of Auchinleck Talbot, while cup holders St Johnstone face a daunting trip to League Two leaders Kelty Hearts.
Celtic are no stranger to a banana skin and will be wary of visiting Alloa Athletic, as will Raith Rovers of North Super League side Banks O’ Dee.
Here, in pictures, we look back at some of the most famous Scottish Cup shocks of them all.
Berwick Rangers 1-0 Rangers – First round, 1967
![Berwick keeper Jock Wallace and stopper Doug Coutts combine to snuff out the danger of Rangers' Jim Forrest.](https://news.stv.tv/wp-content/uploads/2022/01/1b19c20ff92d8740df94145e02b5b6bd.jpg)
Rangers 0-1 Hamilton Accies – Third round, 1987
![Gerry Collins celebrates a famous win for the Accies.](https://news.stv.tv/wp-content/uploads/2022/01/a55d41c26db8a5f46866d4eafc55e567.jpg)
Stenhousemuir 2-0 Aberdeen – Fourth round, 1995
![Tommy Steel (right) celebrates after scoring for shock troops Stenny.](https://news.stv.tv/wp-content/uploads/2022/01/2651a23f724ba880c5ea0cb4ab013f81.jpg)
Celtic 0-1 Falkirk – Semi-final, 1997
![Falkirk players celebrate securing a place in the Scottish Cup final.](https://news.stv.tv/wp-content/uploads/2022/01/1cad5f8196d592c927a960c27fa52a8d.jpg)
Celtic 1-3 Inverness Caley Thistle – Third round, 2000
![John Sutherland, the Inverness general manager, salutes the crowd after a stunning win.](https://news.stv.tv/wp-content/uploads/2022/01/a43274b2c8987c60560a31f18c43a7a1.jpg)
Clyde 2-1 Celtic – Third round, 2006
![Eddie Malone (No 3) stretches to get on the end of a corner and smash a volley home for Clyde.](https://news.stv.tv/wp-content/uploads/2022/01/5bf8f4f6d7cd7e30af4f91656be6a605.jpg)
Albion Rovers 1-0 Motherwell – Fourth round, 2013
![Gary Phillips (third from left) celebrates after scoring in the final minute.](https://news.stv.tv/wp-content/uploads/2022/01/c5c6dea8d0c16c58eb9bda7b4f6869fa.jpg)
Inverness Caley Thistle 3-2 Celtic – Semi-final, 2015
![Future Celtic star Ryan Christie celebrates a Caley equaliser, leaving a certain Virgil Van Dijk helpless.](https://news.stv.tv/wp-content/uploads/2022/01/d7df9a5cf6a20bf157ed423e0ad2ef1b.jpg)
Auchinleck Talbot 1-0 Ayr United – Fourth round, 2019
![The Talbot players celebrate Craig McCracken's winning goal.](https://news.stv.tv/wp-content/uploads/2022/01/a329b897858454f537316c537cabf898.jpg)
Brora Rangers 2-1 Hearts – Second round, 2021
![Martin MacLean celebrates the Highland League side's shock win.](https://news.stv.tv/wp-content/uploads/2022/01/07e3b6a06b8b0304b88b89b33bdeff92.jpg)
Auchinleck Talbot 1-0 Hamilton Accies – Third round, 2021
![Wild celebrations as Graham Wilson scores the only goal of the match for the junior outfit.](https://news.stv.tv/wp-content/uploads/2022/01/b3bd0d23e167c9eeb8de94a46715a040.jpg)
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