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

The Gunners spent more than many expected last summer - most notably their club-record purchase of Nicolas Pepe - but were more reserved in January as they focused on bolstering their defensive options.

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

Sunday morning's Arsenal transfer talk news roundup:

Arsenal 'table £22.5m bid for Celtic striker Odsonne Edouard'

Arsenal have reportedly launched a £22.5m bid to sign Celtic striker Odsonne Edouard.

The 22-year-old has been linked with a move away from the Scottish champions following a prolific spell which has seen him score 51 goals over the past two seasons, including 28 last term.

The Mirror reports that Arsenal have identified Edouard as a possible replacement for Alexandre Lacazette and have made the first move towards bringing him to North London.

The Gunners are on the lookout for Lacazette alternatives amid ongoing speculation over his future at the Emirates Stadium, with Juventus thought to be interested.

Lacazette has publicly confirmed his desire to stay at Arsenal, but the club are understood to be considering his sale in order to help raise funds for other targets such as Houssem Aouar and Thomas Partey.

Arsenal's £22.5m approach for Edouard is understood to be spread out in installments over four years, but Celtic are keen for a larger sum to be paid up front.

Edouard has scored 49 goals in 84 league games for Celtic since joining from Toulouse.

Matteo Guendouzi 'turns down three offers to leave Arsenal'

Matteo Guendouzi is determined to stay at Arsenal and has turned down three opportunities to leave the club this summer, according to a report.

The 21-year-old has been frozen out by manager Mikel Arteta since a bust-up at the end of a match against Brighton & Hove Albion in June and is understood to be up for sale this summer.

Guendouzi has not played a single minute since then, but ESPN reports that he has no interest in leaving the club and is determined to work his way back into Arteta's thinking.

The report claims that the Frenchman has rejected offers from Valencia, Atalanta BC and Villarreal in favour of staying to fight for his place at the Emirates Stadium.

Lyon and Paris Saint-Germain have also been linked with a move for the midfielder.

Arteta has previously shown a willingness to welcome players back in from the cold at Arsenal, with the likes of Granit Xhaka, David Luiz and Mohamed Elneny being handed second chances by the Spaniard.

More transfer news from Arsenal:

Arsenal 'accept £16m Aston Villa bid for Emiliano Martinez'
Arsenal reportedly accept a £16m bid from Aston Villa for goalkeeper Emiliano Martinez, who is now set to undergo a medical this weekend. Read more.

Arsenal 'open talks with Brentford goalkeeper David Raya'
Arsenal reportedly open talks with Brentford over a possible deal for goalkeeper David Raya as a replacement for wantaway Emiliano Martinez. Read more.

Real Madrid to rival Manchester United for Dayot Upamecano?
Real Madrid are reportedly planning to rival Manchester United for the signature of RB Leipzig defender Dayot Upamecano next summer. Read more.