West Ham United have completed the signing of Sebastien Haller from Eintracht Frankfurt.
The 25-year-old striker joins West Ham for an undisclosed club-record fee.
The Frenchman has signed a five-year deal with the option of a further 12 months.
"I can guarantee that I will give 100 per cent for the club because the club has given me this confidence and I will try to give it back every day in every game," he told the club's official website.
"I know it's a big transfer and there is a lot of expectation around me, and I just want to make people proud of this transfer and I will give everything I have."
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Haller, West Ham's fourth signing of the summer so far, began his professional career at Auxerre and has scored 33 goals in 77 appearances since switching to the German Bundesliga from Utrecht in 2017.
He was voted Player of the Year by Utrecht fans in 2015 and has represented France at every level from Under-16 to Under-21.
West Ham have now broken their transfer record for a third time in a little over a year following the arrivals of Issa Diop and Felipe Anderson.
The Hammers begin their 2019/20 Premier League campaign at home against champions Manchester City on Saturday 10 August.