Athletic Bilbao are reportedly interested in re-signing midfielder Ander Herrera from Manchester United.
Herrera has started just one Premier League match for United this season, but played a key role in their 2-1 win over Juventus in the Champions League on Wednesday night.
According to the Independent, Bilbao are closely monitoring Herrera's situation in Manchester, and could approach him in January with a contract offer.
Herrera was born in Bilbao, and came through the youth system at the Spanish club before making 128 appearances between 2011 and 2014 ahead of a move to England.
A number of Premier League clubs are also believed to be interested in signing the 29-year-old.