Willie Miller
Former Aberdeen captain on BBC Sportsound

It was a deserved win. It was not an emphatic win, but in the second half, the visitors did not have much of a threat.

Aberdeen didn't show the composure or quality to take their opportunities, which has been the story of this season.

Lyall Cameron made a difference to the quality of set-pieces.

A reminder of who is now through to the fifth round.

There are six top-flight sides already through, three from the Championship and two each from Leagues 1 & 2.

One more game today, remember, with sixth-tier Auchinleck hosting record winners Celtic, with the final fourth-round game not until Tuesday as fourth-tier Stranraer host Championship side Queen's Park.

Scottish Premiership

Aberdeen, Dundee, Dundee United, Falkirk, Motherwell, Rangers, St Mirren

Scottish Championship

Airdrieonians, Dunfermline Athletic, Partick Thistle

Scottish League 1

Kelty Hearts, Stenhousemuir

Scottish League 2

Elgin City, Spartans

Time has run out on Rovers.

Not a vintage performance, but holders Aberdeen are through to the fifth round of the Scottish Cup thanks to Jack Milne's early, bundled goal.

Image source, SNS

The Dons survive another ball into their penalty box with Rovers desperate for one last sight at goal.

Rovers have a free-kick, but Aberdeen clear and have a chance to kill of the game at the other end.

Kevin Nisbet sets up Jesper Karlsson, but the striker's drive is well blocked by goalkeeper Josh Rae.

Ouch!published at 89mins

89mins

Aberdeen 1-0 Raith Rovers

Aberdeen striker Kevin Nisbet crashes into the front post as he attempts to latch on to a low Topi Keskinen cross.

We're entering three minutes of stoppage time.

Time running out for Rovers if they are going to at least force a sixth fourth-round tie into extra time or even penalties.

Tony Docherty
Former Aberdeen assistant on BBC Scotland

Full credit to Raith, they've kept the same shape, just freshened it up.

They're still carrying that threat and with five minutes to go, you wouldn't put it by them to get that equaliser.

Image source, SNS

Lyall Cameron goes off to a warm ovation from the home fans after his fine debut on loan from Rangers, replaced with Sivert Heltne Nilsen.

Aberdeen are immediately under pressure, with Jordan Doherty just unable to direct a header on target at the back post.

Aberdeen fans want a penalty for a pull on Nicky Devlin as the defender looks to connect on a deflected Jesper Karlsson shot.

Rovers race up the other end and Lewis Vaughan's shot is straight at goalkeeper Dimitar Mitov.

The moment Rovers fans have been waiting for.

Lewis Vaughan, so often a goalscoring hero, is on after recovering from his latest long-term injury.

He and on-loan Rangers midfielder Paul Nsio replace Josh Mullin and Jack Hamilton.

It has been coming as Rovers midfielder Scott Brown is booked for the latest of a series of fouls.

Topi Keskinen is racing clear down the Dons left when Brown takes him out to prevent a promising counter attack.

Big chance for Rovers.

A corner finds a visiting head in among of sea of bodies a couple of yards out, but the ball heads across goal.

On-loan Sunderland midfielder Adil Aouchiche is on for Leighton Clarkson.

Meanwhile, Rovers also make a change, with midfielder Ross Matthews on for defender Jai Rowe.

Lyall Cameron is a threat again.

The on-loan Rangers midfielder gathers just inside the penalty box and his shot on the turn is on target but straight at goalkeeper Josh Rae.

Another dangerous Lyall Cameron corner.

Goalkeeper Josh Rae decides not to come and it falls to Jack Milne at the back post.

However, the Dons centre-half can only bundle it past a post under pressure.

Winger Paul McMullan and young midfielder Kai Montagu are thrown on for Rovers.

Forward Andy Winter is off along with, a bit surprisingly considering he is their cleverest player, midfielder Dylan Easton.

Rovers are rarely being seen as an attacking force at the moment.

Aberdeen midfielder Leighton Clarkson has another sight at goal, but it deflects wide.

However, the Dons just can't turn their dominance of possession into clearcut chances.

Willie Miller
Former Aberdeen captain on BBC Sportsound

Image source, SNS

I think you’re looking for Karlsson to take that one first time. He takes the touch, but once you do that, you’ve got to be able to pick the spot.

Nisbet does so well to set him up, but there’s bodies back and it’s maybe not as easy a chance as the fans think.

But, if he’s on and warmed up, I think he takes that first time.

Tony Docherty
Former Aberdeen assistant on BBC Scotland

I think this is the right time [to make the substitutions]. It's a good decision to get a bit of energy on to the pitch, particularly in wide areas and in midfield.

Shinnie gives that with his midfield runs.