Things change in the blink of an eye in football. The Football Whispers Index takes the latest transfer rumours and gives them a score out of five; the higher the score, the more realistic and reliable the Whisper.
Here are today's top five emerging whispers. And keep an eye on Transfer Talk for all the latest gossip.
Alfie Mawson to West Ham United
Mawson could earn a quick return to the Premier League as West Ham are reportedly in talks with Swansea over signing the England centre-back. According to Sky Sports, West Ham have had a bid rejected for the 24,-year-old along with an offer for teammate Lukasz Fabianski. However, with Manuel Pellegrini keen to shore up what was the second-worst defence in the Premier League last season, they are expected to make a second approach for Mawson.
Mario Gotze to Arsenal
Gotze's World Cup omission from Germany's World Cup squad has seen the 26-year-old look to the Premier League to revive his career. Gotze has endured a frustrating four years in the Bundesliga with Bayern Munich and Borussia Dortmund since starring in Germany's 2014 World Cup win in Brazil. The Mirror claim a number of Premier League clubs have been alerted to his availability with Arsenal, Everton, West Ham and Leicester keeping tabs on the attacking midfielder.
Ilkay Gundogan to Barcelona
Manchester City midfielder Gundogan has emerged as a major transfer target for Barcelona this summer, reports The Sun. With the La Liga champions determined to buy midfield reinforcements following the departure of Andres Iniesta and ageing legs of Ivan Rakitic, Gundogan is at the top of a shortlist which also contains Thiago Alcantara of Bayern Munich and Ajax's Frenkie de Jong. Gundogan, 27, is said to be happy at City but an offer from the Catalan club would have to be considered.
Daniele Rugani to Chelsea
Juventus centre-back Rugani has been placed on the transfer list by the Italian champions and is reportedly eyeing a move to Stamford Bridge. Juve paid just €5 million to sign Rugani, 23, from Empoli in 2015 but are asking for €20m as they seek to raise funds to enable the purchases of Aleksandr Golovin from CSKA Moscow and Valencia full-back Joao Cancelo. Tuttosport claim Rugani's agent Fabio Paratici met with Juventus bosses this week.
Alex Telles to Liverpool
Liverpool are reportedly battling with Paris Saint-Germain and Chelsea to land Porto's Brazilian left-back Telles. The 25-year-old has a £35m release clause in his contract which Les Parisien report Liverpool boss Jurgen Klopp is prepared to pay as he can then sell Alberto Moreno, who has just 12 months left on his contract at Anfield. The 25-year-old, who can also play in midfield, made 13 assists in 30 league appearances for Porto last season.