Brighton's Joao Pedro, centre, is tackled by Arsenal's Leandro Trossard, left, and Arsenal's Riccardo Calafiori during the English Premier League soccer match between Brighton and Hove Albion FC and Arsenal at the Amex stadium in Brighton.

Brighton's Joao Pedro, centre, is tackled by Arsenal's Leandro Trossard, left, and Arsenal's Riccardo Calafiori during the English Premier League soccer match between Brighton and Hove Albion FC and Arsenal at the Amex stadium in Brighton.

Brighton's Pervis Estupinan, right, tries to tackle Arsenal's Ethan Nwaneri during the English Premier League soccer match between Brighton and Hove Albion FC and Arsenal at the Amex stadium in Brighton.

Arsenal's Gabriel Jesus runs with the ball during the English Premier League soccer match between Brighton and Hove Albion FC and Arsenal at the Amex stadium in Brighton.

Brighton's Joao Pedro celebrates after scoring a penalty kick during the English Premier League soccer match between Brighton and Hove Albion FC and Arsenal at the Amex stadium in Brighton.

Brighton's Joao Pedro scores a penalty kick during the English Premier League soccer match between Brighton and Hove Albion FC and Arsenal at the Amex stadium in Brighton.

Declan Rice, left, is tackled by Brighton's Carlos Baleba during the English Premier League soccer match between Brighton and Hove Albion FC and Arsenal at the Amex stadium in Brighton.

Brighton's Yankuba Minteh, right, duels for the ball with Arsenal's Leandro Trossard during the English Premier League soccer match between Brighton and Hove Albion FC and Arsenal at the Amex stadium in Brighton.

Arsenal's Ethan Nwaneri celebrates after scoring the opening goal during the English Premier League soccer match between Brighton and Hove Albion FC and Arsenal at the Amex stadium in Brighton.

Arsenal's Ethan Nwaneri, background, duels for the ball with Brighton's Pervis Estupinan during the English Premier League soccer match between Brighton and Hove Albion FC and Arsenal at the Amex stadium in Brighton.