Chelsea and Manchester United are believed to be on high alert over the situation of Gerard Pique after Barcelona has once again left him on the bench despite an injury to usual centre-back Jeremy Mathieu, Daily Mail reports.
His latest snub means the Spanish international has now missed two games in a row, giving a hint that his future in the La Liga might be coming to an end.
With Mathieu injured, Luis Enrique opted to choose 23-year-old Marc Bartra over Pique to play alongside Javier Mascherano in the 2-0 Champions League victory over Ajax.
The Blues are considering the 27-year-old as a potential replacement for John Terry should he choose to retire as Jose Mourinho is keen in bringing in an experience defender while he waits for his younger stars to shine.
Elsewhere, United are desperate to solve their defensive struggles as they target the La Liga centre-back and is believed to be favourites due to the fact that he spent four years at Old Trafford earlier in his career.