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Celtic 2-0 St Johnstone
St Johnstone are looking much more positive and the extra man in attack is making it more difficult for Celtic to build from the back and Scott Brown has to make a couple of hasty clearances.
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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Clive Lindsay
Celtic 2-0 St Johnstone
St Johnstone are looking much more positive and the extra man in attack is making it more difficult for Celtic to build from the back and Scott Brown has to make a couple of hasty clearances.
Celtic 2-0 St Johnstone
Paul Hartley
Former Celtic and Scotland midfielder on BBC Radio Scotland
Quote MessageTommy Wright will be relatively pleased they're only 2-0 down considering the amount of possession Celtic have had. They haven't troubled Zander Clark too often other than those goals
Celtic 2-0 St Johnstone
Celtic get the second half under way against visitors who have made an attacking change.
Former Celtic striker Tony Watt has come on to replace on-loan Queens Park Rangers midfielder Sean Goss.
Meanwhile, the home side have also made a change, with Kristoffer Ajer replacing Jozo Simunovic at the heart of the defence.
HT: Celtic 2-0 St Johnstone
Just to point out that Celtic made a late change to their bench before kick-off.
Midfielder Olivier Ntcham, who had been named as a substitute after recovering from injury, apparently took ill and his place was taken by winger Mikey Johnston.
Heart of Midlothian v Auchinleck Talbot (15:00)
Hearts manager Craig Levein on BBC Radio Scotland: "If we're at our best today then we should win.
"I've put out a strong team because it's the main cup competition and I want to get to the quarter-finals and beyond.
"I'd much rather be at home and play against a team from the junior ranks than play a Premiership team.
"They're used to winning. That in itself is something we need to recognise and make sure we're not complacent at all."
Image source, SNSHeart of Midlothian v Auchinleck Talbot (15:00)
Auchinleck Talbot manager Tommy Sloan on BBC Radio Scotland: "We had a good experience here last time [in 2012] and were a wee bit unfortunate not to get a result.
"If we could get something like that today, I'd be delighted.
"We had a couple of big results earlier in the competition against, with all due respect, minor opposition. After that, we travelled to the Highlands three times and managed to win tight games.
"We stepped up again against Ayr United and we need to step up again today.
"We'll try and stay in the game as long as we can, hopefully keep it tight and maybe nick a goal on the counter-attack where we've got good pace and ability and can cause Hearts problems."
Image source, SNSHeart of Midlothian v Auchinleck Talbot (15:00)
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Heart of Midlothian v Auchinleck Talbot (15:00)
Auckinleck Talbot cup hero Craig McCracken explains how he combines football and law
HT: Celtic 2-0 St Johnstone

Heart of Midlothian v Auchinleck Talbot (15:00)
Uche Ikpeazu makes his first Hearts start since an October foot injury. Steven MacLean joins the big Englishman up front having missed the midweek draw with Livingston.
In the other change made by boss Craig Levein, on-loan Manchester United wing-back Demetri Mitchell starts ahead of centre-half Conor Shaughnessy, who drops to the bench, as do midfielders Jake Mulraney and Oliver Bozanic.
An attacking line-up...
Image source, SNSUche Ikpeazu came off the bench against Livingston on Wednesday
Celtic 2-0 St Johnstone
Jim Duffy
BBC Sportsound summariser
Quote MessageI don't know if it hits his shoulder, but Murray Davidson doesn't get a clear enough contact on that corner. I think that should have been a goal
It's the same old, same old as Celtic appear to be easing into the quarter-finals of the Scottish Cup thanks to two goals within the first nine minutes.
Strikes from the two Scotts - Sinclair and Brown - and the holders are on their way to a fifth win of the season over St Johnstone.
Saints will take some heart from a couple of late chances, but they will need much more of that after the break.
Image source, SNSScott Brown scored Celtic's second goal
Celtic 2-0 St Johnstone
St Johnstone have a flurry of late chance as Matty Kennedy sends in a cross aimed at Chris Kane and the striker's head flick is deflected over the crossbar.
From the corner, Murray Davidson has a great chance to score, but the midfielder's appears to meet it with his shoulder rather than head, it deflects off Ryan Christie in front of goal and Scott Brown has to hastily clear.
Celtic 2-0 St Johnstone
Paul Hartley
Former Celtic and Scotland midfielder on BBC Radio Scotland
Quote Message57 goals in 144 games - as a wide player, that is incredible, with the stick he's taken over the last couple of seasons. You have to look at the goals he's scoring and at his contribution to the team
Celtic 2-0 St Johnstone
Jim Duffy
BBC Sportsound summariser
Quote MessageThat tells you the concentration levels of Scott Bain - he has had absolutely nothing to do except passing the ball from the back. Good effort but very, very good save from Scott Bain
Celtic 2-0 St Johnstone
Oliver Burke is giving the Saints defence a torrid time and the on-loan West Brom forward powers into the penalty box, but there are no takers for his low pass across the six-yard box.
Celtic 2-0 St Johnstone
Just as Celtic look to be strolling to victory, Saints go close to biting back.
Richard Foster's cut-back finds Chris Kane and the striker's snap shot is turned wide of the far post by Scott Bain at full stretch.
The Celtic goalkeeper showing his shot-stopping skills to add to his earlier passing.
Celtic 2-0 St Johnstone
Celtic are pinging the ball about, with goalkeeper Scott Bain playing a fine role in the little triangles, before advancing forward and probing a Saints defence that are just watching and admiring.
Celtic 2-0 St Johnstone
St Johnstone goalkeeper Zander Clark has never kept a clean sheet against Celtic and that statistic is not going to change today.
Indeed, he will be keen to avoid a repeat of the 6-0 thumping the Perth side received at McDiarmid Park in October.
Celtic 2-0 St Johnstone
Paul Hartley
Former Celtic and Scotland midfielder on BBC Radio Scotland
Quote MessageBurke is coming in short then Forrest is the one moving in behind. Their movement is terrific and St Johnstone are struggling. They're finding it difficult to cope