Chelsea have signed Senegal forward Nicolas Jackson on an eight-year contract from Villarreal.
The 22-year-old scored 13 goals in 38 appearances for the La Liga side last season, including nine in the final eight league games.
He is the Blues' second summer signing after the £52m deal for France striker Christopher Nkunku from RB Leipzig.
"He is a young player with big potential," said co-sporting directors Laurence Stewart and Paul Winstanley.
"We believe he is ready for this next step in his career and look forward to him working with our new head coach, Mauricio Pochettino, and his Chelsea team-mates."
Pochettino is in the process of reshaping Chelsea's squad, with a number of high-profile departures having been completed over the past week - and more set to follow.
