Liverpool and Aston Villa are preparing bids for FC Porto's Senegalese defender Abdoulaye Ba, according to reports in France.
Ba is understood to have resolved to leave Porto, after spending the vast majority of last season on the bench.
The 22-year-old made just six appearances in the Primeira Liga last year and played eight times for Porto's reserve team, who feature in the Segunda Liga.
Liverpool and Villa are two of several clubs believed to be monitoring Ba's situation at Porto, with French sides Rennes and Nice also having expressed an interest.
Porto are understood to prefer a loan deal but may even consider putting a transfer on hold altogether if fellow centre-back Eliaquim Mangala leaves the club.
Mangala has been strongly linked with a switch to Manchester City, who is reportedly ready to meet the player's buyout clause at Porto, believed to be in the region of £38.5 million.