Here are the top headlines and transfer-related stories in Sunday's newspapers...
Manchester City striker Sergio Aguero, 28, is ready to leave the Premier League club because he is unhappy with manager Pep Guardiola's style of play. (The Sun)
City are ready to make a world-record bid to sign Tottenham's 20-year-old midfielder Dele Alli - eclipsing the £89m paid by Manchester United for Paul Pogba. (Daily Express)
Italian giants AC Milan are set to launch a big-money bid for Everton striker Romelu Lukaku, 23, in the summer.