Transfer rumours: Aubameyang, Ronaldo, Messi, Caicedo, Aouar, Tielemans

Gabon striker Pierre-Emerick Aubameyang, 33, wants to fight for his place at Barcelona, who have turned down a bid of £12m from Chelsea. (Deportivo Mundo via Mirror), external

Barcelona want a fee of about £23m for Aubameyang, who joined them on a free transfer in February. (Metro via Gerard Romero), external

Chelsea have held further talks regarding a move for Aubameyang. (Mail), external

Barcelona manager Xavi has asked the club to re-sign Argentina forward Lionel Messi, 35, from Paris St-Germain. (Sun), external

Manchester United have joined a list of Premier League clubs, including Arsenal and West Ham, interested in signing Ecuador defensive midfielder Moises Caicedo, 20, from Brighton. (Mirror), external

Manchester United offered Cristiano Ronaldo to AC Milan and Inter Milan, but both Serie A clubs turned down the chance to sign the 37-year-old Portugal forward. (Tancredi Palmeri via Sun), external

Manchester United have denied speculation that Ronaldo's contract will be terminated. (Sky Sports), external

Nottingham Forest are close to a deal for Lyon's 24-year-old France midfielder Houssem Aouar, who has been linked with Arsenal. (Sky Sports Italy via Metro) , external

Nottingham Forest have submitted a £17m bid for Eintracht Frankfurt's 25-year-old Switzerland midfielder Djibril Sow. (TalkSport), external

Leicester City are willing to let Arsenal target and Belgium midfielder Youri Tielemans, 25, leave for free next summer. (Times - subscription), external

Everton are keen on Albania forward Armando Broja, but Chelsea are reluctant to sell the 20-year-old. (CBS Sports), external

Everton have made an offer for Rennes' 26-year-old Guinea striker Serhou Guirassy. (Mail), external

Southampton and Scotland striker Che Adams, 26, is high on Everton's list of potential signings as they search for a new centre-forward. (Telegraph - subscription), external

Everton value England Under-21 winger Anthony Gordon at £50m after rejecting a £40m offer from Chelsea for the 21-year-old. (CBS Sports), external

Blackburn head the chase to sign Netherlands centre-back Sepp van den Berg, 20, on loan from Liverpool. The proposed deal includes a penalty clause if the defender does not play enough games for the Championship side. (Sun), external

West Ham have submitted an £8.5m bid for Spezia and Poland defender Jakub Kiwior, but AC Milan also want the 22-year-old. (Calciomercato - in Italian), external

Nice have enquired about Chelsea's 28-year-old Brazil left-back Emerson Palmieri. (Fabrice Hawkins via Get French Football News), external

Brighton are in talks to sign Villarreal's 24-year-old Ecuador left-back Pervis Estupinan. (Mail Online), external

Everton could sign Villarreal's Senegal midfielder Nicolas Jackson, 21, by activating a £27m release clause. (Football Insider), external

Bournemouth are interested in signing Ghana centre-back Abdul Mumin, 24, from Guimaraes. (L'Equipe - in French), external