Jiri Skalak has left Brighton & Hove Albion to join Sky Bet Championship side Millwall on undisclosed terms.
The winger has ended a two-and-a-half year stay at the club after arriving from Mlada Boleslav in February 2016.
“He has played his part in helping the club win promotion to the Premier League, and has been a brilliant player to have in and around the squad.
“We understand his desire to play regular first-team football, and wish him all the very best for his future.”
Skalak scored his first Albion goal in a 4-0 win over Queens Park Rangers in April 2016, which was voted the club’s 2015/16 Goal of the Season.
He found the net again away at Charlton Athletic in a 3-1 victory at The Valley, as the Seagulls narrowly missed out on automatic promotion to the Premier League that season.
The Czech Republic international made another 33 appearances across all competitions in Albion’s 2016/17 promotion-winning campaign, but found game time more limited last season, making his final appearance for the club in a 1-0 victory away at Middlesbrough in January.