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 2019-20 campaign, but they have already started their business for the summer.

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

Friday morning's Manchester City transfer talk news roundup:

Barcelona 'offer Manchester City Rafinha in Eric Garcia deal'

Barcelona have reportedly offered Rafinha to Manchester City as part of a deal for Eric Garcia.

The Catalan giants continue to be linked with a move for Garcia, but it is understood that Ronald Koeman's side are some way off coming to an agreement with the Premier League outfit.

City are believed to want €30m (£27.2m) for the teenager, but Barca are only prepared to offer €10m (£9m) for a player who will be out of contract at the Etihad Stadium next summer.

According to RAC1, the La Liga giants have now offered €10m (£9m) for Garcia but are also prepared to include Brazilian attacker Rafinha as a makeweight.

The report, though, claims that City are unlikely to accept the terms as they are looking for a straight cash deal and would not be interested in Rafinha due to their current midfield options.

The 27-year-old is back at Camp Nou this summer after another loan spell at Celta Vigo.

Manchester City accidentally 'confirm' Kalidou Koulibaly signing

Manchester City have accidentally 'confirmed' the arrival of Kalidou Koulibaly during their announcement of the deal to bring Ruben Dias to the club.

City had been heavily linked with a move for the Napoli centre-back but were ultimately put off by his asking price, instead turning their attention to Dias.

Pep Guardiola's side completed the club-record signing of Dias from Benfica earlier this week, splashing up to £65m on the 23-year-old.

However, when officially announcing the transfer on their website, the former champions made an embarrassing gaffe by giving fans the opportunity to ask their new signing Koulibaly a question.

Man City are not expected to move for any more centre-backs this summer, having already spent more than £100m on Nathan Ake and Dias.

More transfer news from Manchester City:

Barcelona 'struggling to agree Eric Garcia deal with Manchester City'
Barcelona and Manchester City remain some way apart in their valuations of Spanish defender Eric Garcia, according to a report. Read more.

Pep Guardiola provides update on Manchester City's stance in transfer market
City have brought three players in this summer. Read more.