Brighton and Hove Albion goalkeeper Bart Verbruggen, centre, celebrates with teammates after the FA Cup fifth round match between Newcastle United and Brighton and Hove Albion at St James' Park, Newcastle, England.

Brighton and Hove Albion's Danny Welbeck, right, scores his side's second goal during the FA Cup fifth round match between Newcastle United and Brighton and Hove Albion at St James' Park, Newcastle, England.

Brighton and Hove Albion's Pervis Estupinan, left, and Newcastle United's Sandro Tonali battle for the ball during the FA Cup fifth round match between Newcastle United and Brighton and Hove Albion at St James' Park, Newcastle, England.

Newcastle United's Alexander Isak scores their side's first goal of the game from a penalty during the FA Cup fifth round match between Newcastle United and Brighton and Hove Albion at St James' Park, Newcastle, England.

Newcastle United's Alexander Isak, right, and Joelinton, centre, speak to referee Anthony Taylor after Brighton and Hove Albion's Yankuba Minteh scores their side's first goal during the FA Cup fifth round match between Newcastle United and Brighton and Hove Albion at St James' Park, Newcastle, England.

Newcastle United's Anthony Gordon, right, is tackled by Brighton and Hove Albion's Tariq Lamptey during the FA Cup fifth round match between Newcastle United and Brighton and Hove Albion at St James' Park, Newcastle, England.

Newcastle United's Alexander Isak scores the opening goal from a penalty during the FA Cup fifth round match between Newcastle United and Brighton and Hove Albion at St James' Park, Newcastle, England.

Newcastle United's Harvey Barnes, centre right, and Brighton and Hove Albion's Jan Paul van Hecke, centre left, battle for the ball during the FA Cup fifth round match between Newcastle United and Brighton and Hove Albion at St James' Park, Newcastle, England.

Newcastle United's Harvey Barnes, right, and Brighton and Hove Albion's Jan Paul van Hecke battle for the ball during the FA Cup fifth round match between Newcastle United and Brighton and Hove Albion at St James' Park, Newcastle, England.