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Nizaar Kinsella
BBC Sport senior football reporter at the Vitality Stadium

Chants of "Ruben Amorim, it's happened again."

The former Manchester United manager Amorim, who was sacked in January, is laughing and the Bournemouth fans give him an applause for taking it in good spirits.

Sunderland boss Regis le Bris speaking to BBC Radio Newcastle: "We expected this atmosphere, this style of play from our opponent.

"I think they are a good team and after the first goal, they showed that they had quality to build up under pressure, to go through our block when we were a bit opened. They created chances as well.

"After that, we created our chances. We deserved to score the second goal. We didn't and in a nice stadium like this against a good team, the momentum can shift and switch really quickly and it happened.

"So good experience. We started the game with seven players under 23 years old so they need to experience those situations against good teams to get better."

Triple change for Bournemouth as we hit the hour mark.

On: Lewis Cook, Rayan, Alex Toth

Off: Tyler Adams, Marcus Tavernier, Justin Kluivert

Brighton manager Fabian Hurzeler speaking to TNT Sports: "We did not play on our highest level, Jablonec defended well and defend box well, good movement in transition. Overall not the result we wanted, but we have to keep going

If you play 0-0 then you didn't create enough, that's definitely something we have to get better at. We have to understand what it needs to play in this cup, understand we have to be brilliant at the basics. We weren't good at the basics today, that’s something we have to improve."

On why his team couldn’t find a way through: “Good defending, crosses not where we wanted to have them. The precision in the last action was missing, that’s something we have to improve.

"The longer the game got, the more space they had to make transitions. We tried to push hard for scoring the goal and of course they had the space to make counter movements. In certain moments we were lucky.

"We always learn, I think it’s important to take things away from this game and improve in the next game. There is no time for a lot of disappointment, we have to focus on the next game."

Nizaar Kinsella
BBC Sport senior football reporter at the Vitality Stadium

Bournemouth supporters and staff have been telling me on the way in that this could be the biggest occasion the club have hosted in their history.

Demand from the media for this fixture is believed to be the highest the Vitality Stadium has ever seen, while leading figures from across the city and the football world are expected to be in attendance.

Staff have been rushed off their feet throughout the day, but there is also a sense of excitement around an occasion many here will savour.

Some hardcore supporters have told me that this is the most prestigious, rather than biggest fixture they have ever hosted, as they say some games in the EFL pyramid have had a bigger impact on the club's history.

"I'm pinching myself," says Bournemouth fan Kirk Tovey.

"It's not long ago we were playing Oldham Athletic and Hartlepool United in League One. Now I'm about to watch us play AC Milan.

"It's absolute madness."

Fifteen years to the day after Bournemouth lost 2-1 at home to Bury in the third tier of English football, the Cherries host seven-time champions of Europe AC Milan in the Europa League on Thursday (20:00 BST).

It is a game between the club that refused to die against the 11-time European Cup finalists on what promises to be a momentous night in the history of the 127-year-old Dorset club.

"Over the last decade, my hometown club has achieved dreamland," Tony Pulis, who played for Bournemouth before managing them from 1992-94 and still lives in the area, tells BBC Sport.

"It's an unbelievable story, when I think back to what the club was like when I was player, coach and then manager there in the 1980s and early 1990s, but one that hopefully just keeps going."

Don Hutchison
Former Sunderland midfielder on TNT Sport

When you don't put teams away in Europe, 21 attempts for Sunderland, and you don't take them, sometimes you get punished and that's exactly what's happened.

After the coach made those changes it's put a bit of energy in Lech Poznan's legs.

Sunderland just don't clear their lines from the corner. It's a good strike, keeps it low, the goalkeeper has no chance.

Gary Bennett
Ex-Sunderland defender on BBC Radio Newcastle

It’s been end to end. I would imagine Regis le Bris will say to the players it has been too open. It could easily have been 3-2. There’s been opportunities for Diarra, Xhaka and Fofana.

Tutierov, I’m over the mean that he’s scored.

They’ve got to manage the game. See if they can get the second goal, get a little bit of a cushion.

Defensively, they’ve got in behind us too. Danso at times has been a little bit sloppy or clumsy - he needs to be a bit quicker.

Don Hutchison
Former Sunderland midfielder on TNT Sport

Because Lech Poznan have so many bodies forward, it feels like if Sunderland can get it out to Fofana and Angulo, those are the players that can get at the full-backs, one v one, and take them on.

Brighton boss Fabian Hurzeler speaking to TNT Sports about the changes: "I wouldn't say we have two teams. I think it's important to manage the energy of the players. All the players who are playing today they have the quality to play in the Premier League. And all of the players who are playing currently in the Premier League they have to keep going because the others are there to compete with them. For us it's very important to have this competition. It always makes teams better.

"These games are really good to give opportunities to players to perform and we give them these kind of opportunities not only because we have to manage the energy it's also because they deserve it. Every player who is on the pitch today deserve to be on the pitch. I think that’s very important to emphasise as well."

On their opponents: "Really impressive. We saw the [previous] games. Well structured in and out of possession, they'll be a tough opponent. We have to be ready for that."

On his 100th game in charge: "I go game by game, if it's 100 games of course it's something special. Great to be part of the journey, it’s great to be part of this amazing club. Hopefully we can keep going."