The 23-year-old was a virtual ever-present for the Seagulls last term, and completed a £50 million move to Arsenal last week.
But Albion coach Graham Potter is remaining calm about losing the England international.
Speaking recently, he said: “I think we have got enough competition in that area. We have got enough good players. We can be flexible with how we set up.
“You can’t replace a £50 million player, you have to look to be creative with solutions within the squad. But we are in a good place now.
“We wish Ben well, he has been fantastic. His journey from the academy to Newport County, to Peterborough, to Leeds United is fantastic for him. To then get a move to Arsenal is a great achievement for him and the club.
“It is a proud moment for everyone connected with the club and I am really pleased for Ben. The fee gives us a fantastic opportunity to develop the club and progress the team."
Potter was speaking after Albion’s first win of pre-season, a 3-1 victory against Luton Town at Kenilworth Road where goals from Aaron Connolly, Enock Mwepu and Percy Tau sealed a 3-1 win.
“I thought we played well in the first half especially; we controlled the game, created some good chances and scored some good goals. I was really pleased for Enock [Mwepu] to get off the mark.”
We’ve gathered the best of today’s Premier League speculation below...

1. Clarets back in for Knight
Jason Knight has once again been linked with a move to Burnley as the Clarets seek to strengthen their squad. (Irish Examiner) (Photo by Laurence Griffiths/Getty Images) Photo: Laurence Griffiths

2. Leeds bid for Gaich
Leeds United have made an offer to sign striker Adolfo Gaich from CSKA Moscow. The striker has a £25.6 million release clause. (Tutto Mercato Web) (Photo by Atsushi Tomura/Getty Images) Photo: Atsushi Tomura

3. Saints bid for Abraham loan
Southampton have made an approach to sign Chelsea striker Tammy Abraham on a season-long loan. West Ham and Arsenal have also been linked. (talkSPORT) (Photo by Catherine Ivill/Getty Images) Photo: Catherine Ivill

4. Cunha could be sold
Hertha Berlin want to sign Lyon winger Maxwel Cornet after making him their top target for the rest of the summer transfer window. However, in order to do so, they need to raise funds and could opt to sell Leeds United target Matheus Cunha and an offer of £25.5 million would be enough to prise the 22-year-old away from Berlin. (BZ) (Photo by Buda Mendes/Getty Images) Photo: Buda Mendes

