Transfer Rater: Ivan Perisic to Manchester United, Steven N'Zonzi to Barcelona

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.

Ivan Perisic to Manchester United

Jose Mourinho remains focused on bringing Perisic to Old Trafford. The 29-year-old Inter Milan winger enhanced his reputation during Croatia's run to the final of the World Cup in Russia as he scored three times. According to the Mirror, Mourinho is only prepared to offload Anthony Martial if he is successful in signing highly rated attacker Perisic. The Manchester United boss reportedly tried to sign Perisic last summer and has retained his interest in him despite failing to bring him to the club last year.

Hatem Ben Arfa to West Ham

Ben Arfa is a free agent after being released from Paris Saint-Germain at the end of last season and he is reportedly on the Hammers' radar. The former Newcastle United attacking midfielder could be heading for a return to the Premier League with new West Ham boss Manuel Pellegrini understood to be a keen admirer. According to Foot365, Ben Arfa could be the latest player to join West Ham and continue their busy transfer activity this summer.

Steven N'Zonzi to Barcelona

France World Cup winner N'Zonzi is reportedly wanted by Barcelona ahead of the new season. The Sevilla midfielder has attracted the interest of the La Liga champions, according to Mundo Deportivo. N'Zonzi is deemed a more viable option for Barcelona than Paris Saint-Germain's Adrien Rabiot. PSG's reluctance to sell Rabiot has led to Barcelona focusing on N'Zonzi and the club are increasingly confident of signing him before this summer's transfer window shuts.

Maxime Gonalons to Crystal Palace

Roma midfielder Gonalons has attracted plenty of interest this summer and could be heading for a move to the Premier League. The 29-year-old Frenchman is also believed to be on Everton's radar, leaving reported suitors Crystal Palace with a battle to secure his services. According to the Evening Standard, Gonalons will be allowed to leave Roma this summer and the former Lyon midfielder could be a useful addition at Selhurst Park if the move goes through.

Moussa Marega to West Ham

West Ham have been one of the most active Premier League clubs this summer and their transfer business may not be over with Marega a potential addition. According to the Daily Mail, the 27-year-old Porto striker is a West Ham target as they look to push through a deal. Marega scored 23 goals last season and the powerful Mali forward could be well suited to playing in the Premier League. With Andy Carroll's fitness difficult to rely on, Marega could be an alternative option as West Ham seek to strengthen their squad.