Athletic Bilbao have announced defender Aymeric Laporte has extended his contract with the club through to the summer of 2020.
Aymeric Laporte, 22, Frenchman had been strongly linked with Manchester City during the summer but a statement from Bilbao on Monday evening said Laporte had committed his future to the La Liga club for the next four years.
It added the release clause would be £52m for 2016-17 and 2017-18, with that then growing to £56m for the two seasons after.
The 22-year-old has Basque heritage and came through the Athletic system, playing for their B team before making his first team debut in 2012. He has made more than 100 appearances for the San Mames side.