Palace took the lead on 51 minutes through a familiar source. Adam Wharton’s shot from the edge of the box was only parried by Vallecano goalkeeper Augusto Batalla and striker Mateta knocked in the rebound from close-range.

Yeremy Pino struck both posts with a free kick shortly afterwards and Mateta brought a fine save out of Batalla as Palace pushed for a second that in the end it did not need in pursuit of a second major trophy in the club's 120-year history.

Palace become the third English side in four years to lift the trophy after West Ham United and Chelsea, while Glasner leaves in celebration having announced in January his departure from Selhurst Park.