Ged Scott
BBC Sport at Villa Park

As can be construed from all the nail biting going on all around, Aston Villa still haven't got their place at Wembley booked yet.

But, if they do somehow make it back to the Premier League, their fans certainly sound up for the challenge.

The traditional cry of "Villa, Villa, Villa, Villa..." to the tune of Amazing Grace just now was right back up to the Holte End's decibel levels of the past.

Midfielder Jonny Howson goes off for Boro and on comes former Villa striker Rudy Gestede.

The Villa fans call for a penalty as Conor Hourihane goes down on the edge of the area from a corner, as he appears to tangle with Muhamed Besic, but the officials say no.

Darren Randolph doesn't move this time, but Albert Adomah's deflected strike from the left loops over the crossbar.

Villa striker Lewis Grabban swerves a cracking strike towards goal from long range and Darren Randolph does well to tip it over the bar.

Here's the change from Tony Pulis. Britt Assombalonga goes off and on comes Patrick Bamford, who has just over 22 minutes to try and add to his 13 goals for the season. And boy, do Boro need one.

At the other end, Lewis Grabban forces Darren Randolph in to a fantastic save with his feet, but it wouldn't have counted - Grabban was offside.

Image source, Reuters

Villa keeper Sam Johnstone is called in to action as he has to come out confidently to claim Adama Traore's cross in the air, after a good run down the right from the Boro winger.

Boro striker Patrick Bamford has just been told to get his training kit off. He's coming on shortly.

Jack Grealish is involved again as Villa win a corner. Can they extend their aggregate lead?

Not yet. The cross is too low and is cleared at the near post by Boro's Britt Assombalonga.

So, with less than half an hour to go, Villa are still going through as things stand. Boro must score or their season will end tonight.

Villa's third yellow card of the night sees Jack Grealish booked for sliding in late on Adama Traore.

Image source, Reuters

A lovely Villa move involving Jack Grealish and Albert Adomah almost sees Lewis Grabban poke home from Adomah's low left-wing cross, but Darren Randolph makes a vital near-post save.

Image source, Reuters

Conor Hourihane's low, left-footed free-kick for Villa is disappointing and hits the wall.

Muhamed Besic clips Jack Grealish's heels and Villa win a free-kick in a central position, around 25 yards from goal. Dangerous.

Now Villa are having a much better spell. Albert Adomah does well down the left, but his decent cross is headed away by Dael Fry.

Villa press high and force Middlesbrough to play it all the way back to their keeper Darren Randolph. That gets the home fans going.

Moments later though, at the other end, Muhamed Besic drills a low shot wide for Boro. That's a half chance, from the edge of the area.

Image source, Reuters

In the play-offs' current format, none of the previous 15 second-tier teams who won their first leg of a semi-final away from home have then failed to reach the final.

However, only six of those 15 teams went on to win promotion.

So I'm not sure if that's a good or a bad omen for Villa.

But there's some pushing in the middle as the corner is swung in to the area, so Villa have a free-kick and will clear their lines.

Image source, Reuters

Britt Assombalonga battles away down the left and wins a corner for the visitors.