Transfer Rater: Kovacic and Pickford to Man United; Hart to Chelsea

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 LIVE for all the deadline day gossip.

Mateo Kovacic to Manchester United

The Croatia midfielder is reported to want a move away from Real Madrid in order to play regular first-team football. According to Spanish outlet AS, Manchester United have joined Tottenham Hotspur, Inter and AC Milan in the race to sign the 23-year-old. Kovacic could be tempted by a move to Manchester and Jose Mourinho is in the market to sign a midfielder who can free up Paul Pogba.

Riyad Mahrez to Arsenal

Arsene Wenger is reportedly looking to further bolster his attacking options by adding Riyad Mahrez this summer. The Algerian is currently on strike after Leicester City rejected a £65 million offer on deadline day. The Daily Star claim Arsenal will weigh up the situation in the summer and could add the Premier League winner to supplement Mesut Ozil, Henrikh Mkhitaryan and Pierre-Emerick Aubameyang.

Jack Wilshere to Liverpool

Negotiations between Arsenal and Wilshere aren't going well. The club have offered the midfielder a longer deal -- his current one expires in the summer -- but have slashed his salary. Reports in the Sun suggest Liverpool are ready to pounce if the 26-year-old turns the deal down. Jurgen Klopp is a long-term admirer and believes he could be an ideal replacement for Emre Can.

Joe Hart to Chelsea

Thibaut Courtois still hasn't put pen to paper on a new deal with Chelsea and there are concerns he will push for a return to Spain during the summer, with the Belgian a transfer target for Madrid rivals Real and Atletico. Chelsea have drawn up a shortlist of keepers to replace him, according to the Sun, and Joe Hart tops it. The 30-year-old is currently on loan at West Ham United but will return to Manchester City at the end of the season. Pep Guardiola has already made it clear that he's surplus to requirements and Chelsea could swoop.

Jordan Pickford to Manchester United

Everton paid a club record fee to sign Pickford in the summer but they could be set to lose him after just 12 months with Man United interested in the former Sunderland keeper. The Sun believe that the Everton No. 1 has impressed Mourinho this season and has worked his way to the top of the list of replacements if David De Gea finally gets his dream move to Real Madrid.