|Scottish Cup fifth round|
|Dates: Saturday 7 & Sunday 8 February Coverage: BBC One and Two Scotland, BBC Radio Scotland, BBC Sport website|
The Scottish Cup reaches the last 16 stage this weekend, with each division in the Scottish Professional Football League still represented and Spartans flying the flag for the Lowland League.
Half of the Premiership sides are gone already, with two more guaranteed to follow and at least three teams from outside the top flight certain to progress to the quarter-finals.
BBC Scotland will provide television, radio and online coverage across Scottish Cup weekend and here provides a summary of each tie.
Saturday, 7 February
Dundee v Celtic (12:30)
Paul Hartley's side held Celtic to a 1-1 draw at Dens Park in August, but Ronny Deila's side has found form and momentum since then.
The Celtic manager has talked of pursuing the domestic treble and although this all-Premiership tie will be challenging, the visitors will consider themselves favourites, even though Dundee have already knocked Aberdeen out of the competition.
Falkirk v Brechin City (15:00)
Falkirk have closed ground on the play-off positions in the Championship, but still suffer from conceding too many goals.
They should be too strong for Ray McKinnon's League One side, but it is the kind of tie that often results in an upset.
Hibernian v Arbroath (15:00)
They are two divisions apart, but this is an intriguing tie. Arbroath are top of League Two, while Hibernian are still susceptible to inconsistency.
Even so, with the likes of Scott Allan and Jason Cummings capable of being irrepressible, Hibs should prevail.
Partick Thistle v Inverness CT (15:00)
Queen of the South v St Johnstone (15:00)
Tommy Wright is a canny manager, though, and his team tends to be reliable.
Spartans v Berwick Rangers (15:00)
This was not the draw that the Lowland League side wanted, because they would have preferred an opponent from the Premiership.
This will be a competitive tie, though, with Berwick mid-table in League Two, the division Spartans are aiming to climb into. They also have form for cup upsets.
Sunday, 8 February
Stranraer v Dundee United (12:30)
Stranraer have only lost four league games all season, and top League One, but they have a stern challenge in trying to compete with United.
Even with Stuart Armstrong and Gary Mackay-Steven having left, United are a strong side with an enviable cup record under Jackie McNamara.
Rangers v Raith Rovers (15:00 - live on BBC One Scotland)
Once again, events at Ibrox are grimly fascinating. Five players arrived on loan from Newcastle, and Kenny McDowall claimed he had been told that he must play them.
How this affects the morale of the squad is key, and Raith Rovers will look to profit in front of what is likely to be a meagre crowd.
Highlights of all fifth round matches will be shown on Sportscene, BBC One Scotland at 22:30 on Saturday and BBC Two Scotland at 22:00 on Sunday.