The summer transfer window has officially opened and many Championship clubs have already moved to obtain their top targets ahead of next season.

As players' contracts expire, managers and club officials will be busy plotting their next moves.

Get the latest Championship transfer news, gossip and rumours from various newspapers and websites below...

Transfer gossip and rumours:                

Birmingham City have been rocked by midfielder Tom Adeyemi's decision to hand in a transfer request amid a transfer offer from championship rivals Cardiff City, which the Blues have rejected. (Birmingham Mail)

The Bluebirds, who are looking at Adeyemi as a replacement for QPR-bound Jordon Mutch, have also lodged a bid for Bordeaux defender Lamine Sane as boss Ole Gunnar Solskjaer faces something of a defensive crisis ahead of the season opener against Blackburn Rovers. (Wales Online)

Wolves have handed a trial to AA Gent central defender Gilles Ruyssen and are retaining an interest in former Leeds United target Liam Cooper as Kenny Jackett steps up his search for reinforcements to his backline. (Birmingham Mail)

Blackpool are closing in on three new signings with Everton midfielder John Lundstram set to become the club's 16th player with a loan deal today, while a deal has been revived for striker Ishamel Miller and the Seasiders are in talks with an unnamed goalkeeper. (Blackpool Gazette)

Brighton and Hove Albion will look elsewhere in their hunt for a versatile forward player after doubts emerged over the availability of Manchester United's Jesse Lingard after his involvement on their US tour. (The Argus)

Reading have reportedly seen a bid for Crystal Palace striker Glenn Murray knocked back as the Royals look to test the Premier League outfit's resolve to hang onto the frontman, while Fulham are also interested. (The Sun)

Rotherham United are out on their own in their attempts to sign St Johnstone striker Stevie May, with Steve Evans hoping to rush through a deal and fend off any potential late competition. (The Star)

Leeds United are set to ramp up their efforts to add a seventh close-season signing with a loan deal for Juventus stopper Frederic Sorensen, as the Whites remain locked in talks with the Serie A club after letting fellow centre-back Tom Lees join Sheffield Wednesday. (Yorkshire Evening Post)

Dave Hockaday's side are also close to winning the race for Peterborough United hotshot Nicky Ajose, with a medical pencilled in for the former Manchester United man for as early as this afternoon and could be joined by fellow striker Nile Ranger. (Sky Sports News)

Blackburn Rovers are awaiting official confirmation of a deal to take forward Ruben Rochina to Granada after the Spaniard underwent a medical with his prospective new employers in the last 24 hours. (Lancashire Telegraph)