According to TuttoMercatoWeb, the club are hoping to bring in two new strikers following the sale of Edinson Cavani to Paris St Germain, and Ba has been identified as a possible target.
New manager Rafael Benitez worked with Ba for the second half of last season at Stamford Bridge, where he is now thought to be surplus to requirements.
The Senegalese striker only joined the club from Newcastle in January, but managed only two Premier League goals, saving his best performances for the FA Cup.
The arrival of Jose Mourinho appears to have pushed Ba further down the pecking order, with the manager recalling Romelu Lukaku from a loan spell at West Brom, and pushing forward with a move for Manchester United star Wayne Rooney.
Ba has also been attracting interest from Premier League clubs, with Aston Villa thought to have identified him as a replacement for Christian Benteke, before the Belgian signed a new deal at Villa Park.
West Ham – the club Ba started his Premier League career at – are also monitoring the situation, as they go in search for a strike partner for Andy Carroll.
Despite a poor return at Chelsea, Ba proved his worth as a Premier League striker with Newcastle, netting 29 times in a season and a half at St James’ Park.
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