Leeds have signed Wolves forward Helder Costa on a season-long loan, before a permanent move next summer.
The Portuguese will join on a four-year deal for an undisclosed fee.
The 25-year-old moved to Wolves from Benfica, initially on loan in 2016, before making the move permanent for a then club record £13m in January 2017.
He scored 19 goals in 106 league appearances for the Molineux side and helped them win promotion to the Premier League in 2017-18.
Leeds confirmed the loan arrivals of Jack Harrison from Manchester City and Ben White from Brighton on Monday, along with the signing of Liam McCarron on a three-year deal from Carlisle United.
Jack Clarke completed his £10m move to Tottenham on Tuesday and was loaned straight back to the Elland Road outfit.
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