Jermain Defoe rolls the ball into the Aberdeen net but the offside flag is up well before he does so.

That was a tight call - it looked like Considine may have played the Englishman onside.

Postpublished at 21:32 GMT 12 March 2019

21:32 GMT 12 March 2019

Rangers 0-2 Abedeen

Goal-scorer Connor McLennan is down for Aberdeen after being caught late by Connor Goldson.

There's no free-kick given and McLennan is able to continue.

Two minutes of normal time remaining. Ibrox is emptying. There are waves of empty blue seats where once there were Rangers fans.

Hearts make their second change. Jake Mulraney, who won the penalty for his side's second goal, is replaced by Callumn Morrison

It's taken Rangers almost 85 minutes to really stress Joe Lewis as Alfredo Morelos forces a flying save from Aberdeen goalkeeper.

His swerving effort is beaten clear at the near post by the big Englishman.

Then Morelos goes down holding his face after running past Considine in pursuit of the rebound...there's nothing in that, though.

Max Lowe catches Alfredo Morelos on the edge of the box. There's a bit of a delay befoer the Colombian goes down clutching at his knee. No free-kick given, much to his chagrin.

Moments later, Morelos does draw a foul from Andy Considine, who goes into Kevin Clancy's book. Free-kick Rangers on the right angle of the box.

Aberdeen are making their final change. Stevie May off, James Wilson on. An industrious display from May in the absence of main striker Sam Cosgrove.

Wilson makes an immediate and important intervention, clearing that Rangers free-kick.

Aberdeen break up the left as Max Lowe bullies Tavernier off the ball.

His square pass evades Stevie May, and suddenly it's Rangers who burst downfield.

Teenager Dean Campbell, on his first start, takes one for the team, chopping down Ryan Kent to stop the counterattack.

The 17-year-old is booked and that's his last act of a fine first start in Dons colours. On comes Stephen Gleeson.

Buoyed by the penalty let-off, Partick finally threaten in the second half. Scott McDonald lets fly from 25 yards on the angle and it's enough to worry Bobby Zlamal who dives full length as the ball goes just wide.

Willie Miller
Former Scotland defender on BBC Radio Scotland

Aberdeen are quite content to sit deep and challenge Rangers to break them down - something the home side haven't managed enough despite enjoying the lion's share of possession.

This is a really strong tactical display from Derek McInnes.

Defoe almost gets on the end of a through ball but Andy Considine is there to ease him off the ball and allow Joe Lewis to come out to scoop up.

Derek McInnes introduces defender Mikey Devlin for winger Niall McGinn, who scored Aberdeen's opening goal.

Aberdeen almost catch Rangers out yet again.

Stevie May has all kinds of space up the right, rumbles along the bye-line and cuts back for Lewis Ferguson.

Connor Goldson has to run back and clear behind for a corner.

Rangers deal with the set-piece but that was very nearly game over.

Ikpeazu's spot-kick is saved by Conor Hazard! Justice is done as Hazard dives low to his right to keep out the striker's effort. Ikpeazu had won the spot-kick after minimal contact from Blair Spittal. Jags were furious at the decision but live to fight on after Hazard's heroics.

A second penalty of the night for Hearts, won by Uche Ikpeazu. This would surely kill the tie...

Willie Miller
Former Scotland defender on BBC Radio Scotland

Olly Lee makes way for fellow Hearts midfielder Peter Haring. Fresh legs for the final 25 minutes as the hosts try to put the tie to bed.

Well, if Aberdeen do see this one out, they'll be without their captain for the semi-final.

Graeme Shinnie is booked for a sliding tackle on Ryan Kent.

Steven Gerrard has to go for broke now.

And when you need a goal, Jermain Defoe ain't a bad sub to bring on.

The veteran England striker is introduced, as is towering Kyle Lafferty, to add some much-needed firepower.

Off come Scott Arfield and Daniel Candeias.

Good chance for Hearts to get some breathing space at Tynecastle.

Marcus Godinho's cross from the right finds Sean Clare unmarked eight yards out but his header drifts narrowly wide. Craig Levein's men well on top in the second half.

Stevie May has already been booked and he must surely be on his very final warning after committing a foul then kicking the ball away.

Kevin Clancy has a stern word with the Aberdeen striker. He's perhaps a bit lucky it's just a talking-to.