Arsenal have agreed a fee of £21million plus add ons with fellow Premier League outfit Brighton for attacker Leandro Trossard, football.london understands.
The Belgian international will arrive in north London on a deal until 2027 with the option to extend by a further year. After missing out on Ukrainian winger Mykhailo Mudryk earlier in the January transfer window, with the talented wideman joining Lonson rivals Chelsea last weekend, the Gunners then turned their attention to Trossard earlier this week.
Arsenal are keen to have the 28-year-old available for Sunday's clash against Manchester United, although they face a race against time as the deal would have to be completed by midday today (Friday) if the player is to be named in the squad to face Erik ten Hag's side.