Slack Aberdeen play means Stefan Gartenmann has to thwart Jessic Ngankam with a superb last-ditch tackle.

With well over 20 minutes to go, Aberdeen are still in this.

But they are starting to tire and if anything Eintracht look the more likely.

We all know what happened the last time I said similar...

Rory Loy
Former Dundee & St Mirren forward on BBC Sportsound

As good as Aberdeen have been from open play - concentration with and without the ball - they lose a goal from a corner.

It's a wicked delivery. It's a wonderful header from Koch. The nature of the goal will be such a frustration for Barry Robson after such a good defensive display.

Eintracht have turned the screw.

Kelle Roos has to get down to his left to tip behind after Stefan Gartenmann flies into a dodgy tackle.

Stephen Craigan
Former Motherwell defender on TNT Sports

For all their hard work, it's a set-play. It's a lapse in concentration.

It's a real challenge, physically and mentally, to be in this type of game. It's a tough one to take for Aberdeen.

Image source, SNS

Rangers: Butland, Tavernier, Goldson, Davies, Barisic, Lundstram, Cifuentes, Lawrence, Matondo, Sima, Roofe.

Substitutes: McCrorie, Dessers, Lammers, Sterling, Jack, Souttar, S Wright, King, Devine, McKinnon, Lyall, K Wright.

Real Betis: Bravo, Betis, Pezzella, Bartra, Vinicius, Rodriguez, Roca, Henrique, Isco, Ezzalzouli, Borja Iglesias.

Substitutes: Vietes, Garcia, Miranda, Perez, Jose, Rodri, Guardado, Ruibal, Diao, Fernandez.

Jamie McGrath absolutely clatters Omar Marmoush pretty much on the corner flag and gives away a free-kick.

He makes up for it by heading away at the first post.

A long Eintracht ball goes out of play and Dina Ebimbe cuts a frustrated figure.

Just about to hit the hour and yet to see anything special from the Bundesliga hosts.

Again, the flag is up anyway but Kelle Roos stands firm to deny Niels Nkounkou.

The Eintracht winger is rapid.

It's Bojan Miovski who makes way for Duk.

Interesting. More pace up there for the Dons now.

Duuuuuuk.

Here he comes...

Tyrone Smith
BBC Scotland in Frankfurt

Aberdeen will be bracing themselves for Frankfurt to throw everything at them in this second half.

Instead of standing free, the Dons will need to stand firm and keep their concentration, and their nerve.

Rory Loy
Former Dundee & St Mirren forward on BBC Sportsound

Barry Robson will need to make good use of his bench tonight. The mental concertation, the psychical output, players will start to tire.

They need to stay fresh of mind when they go into the last 20 minutes of the match.

The hosts are unconvincing in clearing the free-kick but it just won't sit for Bojan Miovski.

Whisper it, but there might be something more in this for Aberdeen if they're brave.

It's Jamie McGrath's turn to win a free-kick now, this time in the Eintracht half.

I think this will get put into the box...

Graeme Shinnie does brilliantly once more to win a foul deep in his half.

That's just what you need in games like this. The Dons captain has been superb so far.

Again, another ball lumped straight into the hands of Kelle Roos.

He'll just take his time again as well.

A common theme. Eintracht have the ball.

But it comes to nothing again as a cross is claimed with ease by Kelle Roos.

Oh, it's two changes actually.

Mario Gotze has bottled it from Graeme Shinnie, he's aff for Fares Chaibi.

Paxten Aaronson is also off for Jessic Ngankam.