Trossard, 24, joins the Seagulls on a four-year deal and is their second signing of the summer, after Matt Clarke's arrival from Portsmouth.

The Belgian joined Genk in 2012 but went on four loan moves before claiming a place in their first-team squad.

He helped them win their first Belgian title in eight years in 2018-19, scoring 15 goals in 35 appearances.

Trossard was given the captain's armband towards the end of the campaign.

"We are delighted to welcome Leandro to the club and excited about the impact he can have for us," Brighton manager Graham Potter said.

"He's an attack-minded player who had a very impressive season last year in helping Genk win the league title.

"At 24, he also brings good experience, having captained the side and featured many times in the Europa League."

Trossard joined Genk's youth academy in 2010 and was promoted to the senior squad two years later, making his debut towards the end of the 2011-12 campaign.

Loan spells at Lommel United, Westerlo and OH Leuven followed before he became a regular at Genk in the 2016-17 season.

Since then, the midfielder, who has represented Belgium from under-16 to under-21 level, has scored 39 goals in 118 appearances.