Chelsea are bracing themselves for a bid from Barcelona for defender David Luiz, the Mirror understands.
The La Liga champions have been linked with the Brazil international all summer as they look to recruit a new centre half.
The Catalan clubs defensive frailties were exposed last season, none more so than in the 7-0 aggregate defeat to Bayern Munich in the Champions League semi-finals.
Bayern, who went on to win the competition, yesterday ruled themselves out of a move for Luiz, though Blues boss Jose Mourinho has insisted that the 26 year old is not for sale.
Nevertheless, Barcelona are reportedly lining up a £30m offer, with the hope that new signing Neymar can help tempt his international teammate to move to Spain.
Elsewhere, Chelsea are on alert after Brazil international Willian expressed a desire to quit Anzhi Makhachkala, according to the Metro.
The 24 year old has stressed that he wants to play in the Premier League, and is likely to jump at the chance should the Blues come calling.
Meanwhile, midfielder Josh McEachran could be set for a loan move to La Liga side Real Sociedad, the Mail Online understands.
The 20 year old spent last season with Middlesbrough, though the North East club have declined the chance to take him for the forthcoming campaign.