Crystal Palace have converted Jean-Philippe Mateta's loan from Mainz into a permanent deal.
The 24-year-old striker, who arrived at Selhurst Park on an initial 18-month loan last January, has signed a four-and-a-half-year contract for a fee in the region of £8million.
Mateta's original loan deal included an obligation for the Eagles to purchase him from Bundesliga side Mainz for around £13million dependent on him making a certain number of starts. That figure has not been reached, meaning Palace have been able to negotiate a lower fee for the forward.