MirrorSport suggests that Manchester United and Barcelona are keeping a close eye on Arsenal captain Thomas Vermaelen.
The report proposes that the Gunners are prepared to sell the Belgian centre-half who started 25 times in the Premier League during the 2012/13 season with Arsene Wenger preferring Laurent Koscielny and Per Mertesacker as his central defensive pairing.
United and Barca have both been alerted by the news that Wenger is ready to listen offers for the former Ajax star.
