The Portugal striker, who stars alongside Cristiano Ronaldo for his nation, never got off the ground at the San Siro – taking until March to score his first Serie A goal after joining last summer.
The Rossoneri shelled out the princely sum of €38m to Porto for his services but will hope Silva is a success in Spain, as Sevilla are willing to pay up an initial €5m loan fee with a €30m option to buy.
Silva is not part of the squad that faces Real Madrid in a friendly on Saturday and has flown out to Seville for a medical.
The transfer window slams shut in both France and Spain on August 31, giving the Parisian club plenty of time to seal a deal for the 21-year-old talent.
Although the Frenchman was part of Didier Deschamps’ winning World Cup squad, he faces a big season at club level and needs regular game time – something of which he is not guaranteed at Barca – to progress.
Dembele has only fleetingly produced his top talent on the pitch at Blaugrana since his €105m arrival from Borussia Dortmund last summer, while the purchase of Brazilian winger Malcom also provides more competition.
The Rossoneri want to take the France midfielder on loan with a view to a permanent move before the Serie A transfer window comes to a close this Friday.
However, with Chelsea desperate to recoup the £40million they paid Monaco last season, Milan’s own valuation for a combined loan fee and option to buy is reportedly £31.5m.
With Bakayoko cut adrift from a new era under Maurizio Sarri, the Serie A side are happy to play the waiting game knowing that Chelsea do not have much leverage to play with.
The 23-year-old played 43 times for Chelsea last year but is clearly behind the likes of Jorginho, N’Golo Kante, Cesc Fabregas and Real Madrid loanee Mateo Kovacic in the midfield pecking order.