Postpublished at 18mins
Celtic 2-0 St Johnstone
It's gone very quiet at Celtic Park, with Brendan Rodgers' side hogging the ball and a shell-shocked Saints giving no indication that they are capable of recovering from those two early blows.
Summary
FT Aberdeen 4-1 Queen of the South - McGinn, Considine, Cosgrove (2) for hosts; Dobbie had levelled with stunner
FT Hearts 4-0 Auchinleck Talbot - Berra, Mitchell, Maclean & Keena knock out juniors
FT Celtic 5-0 St Johnstone - Sinclair hat trick, Brown stunner & Forrest goal put holders into quarter-finals
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Postpublished at 18mins
Free and easy for Brownpublished at 13:49 GMT 10 February 2019
Celtic 2-0 St Johnstone
Jim Duffy
BBC Sportsound summariserQuote MessageScott Brown has the freedom of Celtic Park to dictate the play. Someone needs to pick him up from St Johnstone
Brown ends two-year barren spellpublished at 13:46 GMT 10 February 2019
Celtic 2-0 St Johnstone
It's only a couple of weeks since Scott Brown was contemplating offers from Australia and the MLS.
But the veteran midfielder has extended his stay at Celtic Park and celebrated with his first goal since February 2017.
Image source, SNSBrown says 'I'm still the man'published at 13:44 GMT 10 February 2019
Celtic 2-0 St Johnstone
Jim Duffy
BBC Sportsound summariserQuote MessageAbsolutely top-class goal from Scott Brown. He puffs the chest out, the fans love him, he's signed the new contract and this is the icing on the cake for him. He's saying 'I'm still here, I'm still the man, I'm still captain'. Outstanding
GOAL Celtic 2-0 St Johnstonepublished at 9mins
Scott Brown
It looks like game over for Saints already as Scott Brown sends a screamer past goalkeeper Zander Clark.
The Celtic captain takes control of a poor Scott Tanser clearance and sends it past Clark from 20 yards.
Image source, BBC SportImage caption, Celtic make it two
'Terrific football' from Celticpublished at 13:39 GMT 10 February 2019
Celtic 1-0 St Johnstone
Paul Hartley
Former Celtic and Scotland midfielder on BBC Radio ScotlandQuote MessageGreat play by Ollie Burke, I was thinking why did he not shoot? He tries to square it to Sinclair. It's a tight angle for him. But it's terrific football from Celtic in terms of the combination and the pace
GOAL Celtic 1-0 St Johnstonepublished at 3mins
Scott Sinclair
It had been a fairly subdued start, but it's not looking good for St Johnstone after only three minutes as Scott Sinclair slots in the opener from a difficult angle.
New on-loan signing from Borussia Dortmund Jeremy Toljan sets Oliver Burke powering through a gap in the centre of the visiting defence.
The West Brom winger has been in fine scoring form but elects to play it across the face of goal and Sinclair finishes it off.
Zander Clark has been St Johnstone's hero against Celtic in recent games, but the goalkeeper won't be happy at being beaten at his near post.
Image source, BBC SportImage caption, Scott Sinclair opens the scoring.
KICK-OFFpublished at 13:32 GMT 10 February 2019
Celtic 0-0 St Johnstone
Referee Nick Walsh's whistle signals the start of the match and St Johnstone kick off in their traditional blue shirts and white shorts.
Holders Celtic have defended the Scottish Cup eight times but are looking to win it three seasons in a row for the first time.
Nearly there...published at 13:29 GMT 10 February 2019
Celtic v St Johnstone (13:30)
Here come the teams into a Celtic Park bathed in sunshine.
Here's hoping the action is just as bright.
'We know size of task' - Wrightpublished at 13:29 GMT 10 February 2019
Celtic v St Johnstone (13:30)
St Johnstone manager Tommy Wright tells Premier Sports: “Hopefully we can press Celtic higher up the pitch, more so than we did the last time.
“We want to win the game, but we know the size of the task. They’ve won 24 Scottish Cup ties in a row, they’ve won two trebles back to back and they’re playing as well as they have done for a long time.
“So it’s going to be a difficult game, but we’ve got to try and take care of the ball.
“We did that at home, our possession was up about 10% than what we were last time, so we have to get up to about 40% possession to give us an opportunity to create opportunities against them, because we feel we can score against them.”
Image source, SNSLambert sent to stand in derbypublished at 13:28 GMT 10 February 2019
It's not going well for former Celtic midfielder Paul Lambert down at Ipswich Town.
The Tractor Boys manager has been sent to the stand with his team, bottom of the Championship, going behind early in their derby away to derby rivals Norwich City.
Relive Norwich's derby win over Ipswich
Norwich beat bottom club Ipswich to go top of the Championship - relive the action as it happened.
Read MoreSaints in good heartpublished at 13:21 GMT 10 February 2019
Celtic v St Johnstone (13:30)
Image source, SNSImage caption, St Johnstone's players look in a good mood despite their dismal recent results against today's hosts as they come out on to Celtic Park.
Saints to 'defend for their lives'published at 13:17 GMT 10 February 2019
Celtic v St Johnstone (13.30)
Jim Duffy
BBC Sportsound summariserQuote MessageCeltic are in phenomenal form, banging in the goals and not losing any. St Johnstone are off the boil. Celtic know how to play against St Johnstone, know what to expect, so you would expect them to win relatively comfortably here today. I see St Johnstone defending for their lives, making it as tight as possible and trying to stay in the game for as long as they can
Pittodrie action on BBC One TVpublished at 13:14 GMT 10 February 2019
Aberdeen v Queen of the South (15:30)
Remember that, as well as coverage that has already begun on BBC Radio Scotland, this afternoon's tie between Aberdeen and Queen of the South is live on the telly - BBC One Scotland.
Coverage begins at 15:05.
Bain number one againpublished at 13:10 GMT 10 February 2019
Celtic v St Johnstone (13:30)
Scott Bain is named in goal by Celtic manager Brendan Rodgers for a seventh game in a row.
The statistics show that it is his skill with the ball at his feet that are key to the former Dundee man ousting Scotland goalkeeper Craig Gordon.
Has Bain become Celtic's number one?
Scott Bain has started Celtic's last seven games. Has he now ousted Craig Gordon and made himself Brendan Rodgers' first-choice between the posts?
Read MoreRodgers seeks same againpublished at 13:06 GMT 10 February 2019
Celtic v St Johnstone (13:30)
Brendan Rodgers is looking for the same again as his Celtic side face St Johnstone once again.
"We’re hoping it’s what it’s been for most of the games against St Johnstone - we’ve played very well in the games," he tells BBC Radio Scotland.
"You have to do all the dirty work, defend very strong, press the game well and then our style and hopefully the quality of our game comes through.
"Today, it’s another game that reveals the character of your team.
"You’re playing a team for the fifth time, you’re expected to win. It’s a home game and we’re expected to win here."
Image source, SNSDeja vu in Glasgowpublished at 13:04 GMT 10 February 2019
Celtic v St Johnstone (13:30)
It's the third meeting between Celtic and St Johnstone within 11 days and their fifth meeting this season.
And the statistics are massively in the home side's favour.
Celtic have won all four meetings this season without losing a goal and finding the net 11 times.
Saints have not won on their last seven visits to Celtic Park since March 2015.
Relative form doesn't hint at a change to that trend, with the visitors from Perth on a run of four straight defeats while Celtic have won six in a row.
Image source, SNSImage caption, Timothy Weah scored in Celtic's 2-0 win over St Johnstone in Perth this month
Three changes for Saintspublished at 13:03 GMT 10 February 2019
Celtic v St Johnstone (13:30)
St Johnstone manager Tommy Wright makes three changes from the side that lost 2-1 away to Hamilton Academical in midweek.
Former Celtic striker Tony Watt and fellow forward Michael O'Halloran drop to the bench along with midfielder Ross Callachan.
Murray Davidson returns from injury and David Wotherspoon is also back in midfield, with Chris Kane given his chance up front.
Image source, SNSImage caption, Tony Watt drops to the bench against his former club
Forrest and Hayes startpublished at 13:01 GMT 10 February 2019
Celtic v St Johnstone (13:30)
There's no sign of Celtic manager Brendan Rodgers taking this game lightly or resting players ahead of Thursday's Europa League game against Valencia.
Scotland international James Forrest returns from injury to start, while fellow winger Jonny Hayes fills in at left-back after Emilio Izaguirre is ruled out following a knock picked up against Hibs in midweek and with Kieran Tierney still sidelined.
Timothy Weah drops to the bench, where he is joined by fit-again fellow striker Odsonne Edouard and midfielder Olivier Ntcham.
Image source, SNSImage caption, Odsonne Edouard returns to the Celtic bench after injury
LINE-UPS from Celtic Parkpublished at 12:57 GMT 10 February 2019
Celtic v St Johnstone (13:30)
Image source, BBC SportImage caption, Celtic starting XI
Celtic: Bain, Toljan, Boyata, Simunovic, Hayes, Brown, McGregor, Christie, Forrest, Sinclair, Burke.
Substitutes: Gordon, Bitton, Ntcham, Edouard, Lustig, Weah, Ajer.
St Johnstone: Clark, Foster, Tanser, Shaughnessy, Kerr, Goss, Davidson, Craig, Wotherspoon, Kennedy, Kane.
Substitutes: Bell, Alston, Swanson, O'Halloran, Callachan, Keown, Watt.
Image source, BBC SportImage caption, St Johnstone starting XI