The buildup to the summer transfer window has now begun, with rumours and speculation continuing to swirl as Manchester City eye possible reinforcements.

The 2018-19 champions did not bring in a single player during the January transfer window, despite suffering a defensive shortage for much of the campaign so far.

Here, Sports Mole rounds up the latest news on possible comings and goings at the Etihad.

Monday morning's headlines:

Napoli 'to make Kalidou Koulibaly available for Premier League move'
Napoli are reportedly prepared to sell Kalidou Koulibaly to a Premier League club this summer, according to a report. Read more.

Manchester City 'would consider Lionel Messi if Pep Guardiola leaves'
Manchester City would move for Barcelona forward Lionel Messi if Pep Guardiola leaves the Etihad Stadium, according to Spanish football expert Graham Hunter. Read more.

Leroy Sane given Philippe Coutinho's shirt number at Bayern Munich
Leroy Sane is handed the number 10 shirt at Bayern Munich - the number currently worn by on-loan Barcelona attacker Philippe Coutinho. Read more.

Ismael Bennacer 'open to joining Manchester United this summer'
AC Milan midfielder Ismael Bennacer is open to joining Manchester United this summer, according to a report. Read more.

Everton 'to rival Arsenal for John Stones'
Everton are reportedly considering whether to try to secure a reunion with Manchester City defender John Stones, who is also said to be a target of Arsenal. Read more.

Eric Garcia 'to snub Barcelona to sign Manchester City deal'
Eric Garcia is reportedly close to penning a new long-term contract with Manchester City, rather than accepting the chance to return to Barcelona. Read more.