Aymeric Laporte is facing a long lay-off after he suffered a serious injury while playing for France's U21 team.

The Athletic Bilbao defender, who is a reported transfer target for Manchester City, was taken off on a stretcher during Thursday's match with Scotland's U21 side in Agers.

A scan on Friday revealed he has sustained a broken leg and dislocated ankle.

"After the first scan, Aymeric Laporte has been diagnosed with a fracture-dislocation of the fibula and right ankle," read a statement from Bilbao.

"On his return to Bilbao he will be subjected to further tests after which the extent of his injury and his period of absence will be determined."

The 21-year-old, who is regarded as one of Europe's finest centre-backs, was was widely reported to be one of Pep Guardiola's No 1 summer transfer targets with City apparently prepared to meet his buy-out clause of just under £40m.