Brighton winger Jiri Skalak blasts narrowly over the bar, hitting a left-footed volley on from a tight angle.

It would have been spectacular if it had gone in.

The visitors are getting occasional chances, despite being down to 10 men because of those earlier injuries.

Image source, PA

Hillsborough is in fine voice following that second goal from Kieran Lee, and several fans have the lights on their smartphones on to create extra atmosphere.

Meanwhile, Brighton survive a penalty shout from the supporters for a challenge by Richie Towell on Marco Matias.

Chris Waddle
Ex-England winger at Hillsborough on BBC Radio 5 live

"Forestieri was 25 yards out and showed a little bit of composure to roll it into Lee. He had a bit of good fortune but Stockdale had no chance.

"Brighton have got to dig in now or this semi-final could be finished."

Image source, Rex Features

Chris Waddle
Ex-England winger at Hillsborough on BBC Radio 5 live

"Sheffield Wednesday could live to regret this. Give Brighton credit, they've dug in when they could have folded.

"Wednesday are playing so slow and it's letting Brighton get behind the ball and organised."

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Skalak takes it on himself, gets the ball over the Wednesday wall but can't get it down again and it goes over the bar.

It's about as close as Brighton have come since hitting the woodwork early in the first half.

Brighton winger Jiri Skalak pounces on an under-cooked pass from Glenn Loovens and Daniel Pudil takes him down.

The Czech goes into the book for the foul on his compatriot.

A good location for a Brighton set-piece, this, just outside the D and slightly to the right of goal.

Owls winger Fernando Forestieri curls a shot from distance well over the bar from range.

Now the goalscorer Ross Wallace has been replaced, to a very decent ovation at Hillsborough.

He's replaced by Marco Matias.

With that injury to Anthony Knockaert, Brighton have been forced into a 4-4-1 formation.

On-loan striker James WIlson is up front on his own, with Sam Baldock on the left flank now.

It's a bit of a thankless task for Albion's strikers currently, with Wednesday enjoying the man advantage.

Image source, Rex Features

Wednesday make their first substitution, as Atdhe Nuhiu comes on for Alex Lopez.

In replacing a midfielder with a forward, Owls head coach Carlos Carvalhal looks like he's going for it.

Brighton look to come forward through James Wilson and Sam Baldock in what may be a rather rare counter-attack but the move breaks down.

Some of you suggesting a possible reason for Brighton's injury woes today...

Beth Smith: Happy Friday 13th Brighton.

Carl Arrowsmith: Four injuries for Brighton? Definitely an unlucky Friday 13th for them.

This is a real opportunity for Sheffield Wednesday now.

A goal up, a man up and half an hour left at a bouncing Hillsborough.

It can't get much worse for the Seagulls, can it? Oh, they've never won in 16 previous visits to the Owls.

Image source, Rex Features

Anthony Knockaert won't be able to continue. He's being taken off on a stretcher after that ankle injury.

Brighton will have to play the last 30 minutes with 10 men following four injuries this evening.

There's a shot of Brighton chairman Tony Bloom in the stands at Hillsborough, shaking his head in disbelief.

They'll be rather depleted for Monday's second leg.

Wednesday almost play their way through the Brighton defence again but the offside flag is up.

Now Brighton winger Anthony Knockaert is hobbling slightly after chasing a ball forward.

He can barely walk on his ankle - and Brighton have used all three subs. The Frenchman has his head in his hands while he receives treatment.

Karl McDonnell: Don't worry Brighton, Richie Towell always scores in the important games, take this from a Dundalk fan. Every. Single. Time.

There may be hope for Seagulls fans yet...

Image source, Rex Features

Brighton keeper David Stockdale gathers a cross from Daniel Pudil and looks to get a counter-attack going.

But his ball towards Jiri Skalak bounces out of play.

Wednesday are looking comfortable in possession with the backing of this sell-out Hillsborough crowd.

Chris Waddle
Ex-England winger at Hillsborough on BBC Radio 5 live

"It's unbelievable. Brighton have had to make three subs through injuries. It's frightening.

"Wednesday aren't going to get a better chance of killing the tie than they are tonight. They've got to start asking more questions."

Brighton fill-in centre-back Bruno goes into Andre Marriner's book for a trip on Fernando Forestieri on the edge of the box.

It's a dangerous location for an Owls set-piece but the ball goes wide of David Stockdale's left-hand upright.

Brighton are forced into their third change of the evening.

This time it's midfielder Steve Sidwell who goes down injured.

It's Irishman Richie Towell who is coming on for the Albion, making his league debut for the Seagulls following his January move from Dundalk.

A nice easy, low-pressure environment for him to come into, then.