The return of Cesc Fabregas to Barcelona has produced mixed results.
Fabregas was a prodigy at Arsenal, but he hasn't developed a clear role back with Barça.
Arsenal and Manchester United have been informed that Fabregas could be made available.
United approached Barcelona about a move last summer, but Fabregas wasn't interested at that time.
Arsenal included a £23.6 million buy-back clause in the deal that took the former club captain back to Catalonia and manager Arsene Wenger is understood to have talked “quite a bit” on the phone with his old skipper about the possibility of a reunion.