Celtic boss Ange Postecoglou is the latest manager to be considered for the Chelsea job, though former Tottenham manager Mauricio Pochettino remains the frontrunner.
Bayer Leverkusen boss and former Liverpool midfielder Xabi Alonso, 41, has emerged as a strong candidate to be the next West Ham manager if David Moyes leaves this summer.
Paris St-Germain will let Argentina forward Lionel Messi, 35, leave on a free transfer when his contract expires this summer as the club plans a more sustainable future with fewer star names and a greater emphasis on developing young talent.
Newcastle are planning a move for Barcelona’s 26-year-old Brazilian forward Raphinha.
Manchester United and Liverpool are interested in signing 24-year-old Argentina midfielder Alexis Mac Allister from Brighton.
Aston Villa are considering a £55m combined bid for two Manchester City and England players – 32-year-old defender Kyle Walker and midfielder Kalvin Phillips, 27.
Ollie Watkins has agreed a new long-term contract at Aston Villa despite Arsenal, Tottenham Hotspur and Newcastle United expressing an interest in the 27-year-old England striker.
Chelsea’s 32-year-old France midfielder N’Golo Kante and 33-year-old Gabon striker Pierre-Emerick Aubameyang are summer targets for Barcelona.
At least 10 Chelsea players are considering their futures at the club after their Champions League defeat by Real Madrid last week ended any hopes of silverware and European football next season.
Newcastle United are confident they can complete a £30m deal to sign Arsenal and Scotland defender Kieran Tierney, 25, this summer.
Brighton are close to agreeing a deal to sign 16-year-old Scotland-born defender Ronan Ferns from Celtic.
Barcelona have scouted as many as 13 players as they look to sign a right-back this summer, including Manchester United’s 24-year-old Diogo Dalot and 28-year-old Joao Cancelo, who is currently on loan at Bayern Munich from Manchester City.
Chelsea have agreed a deal to sign 18-year-old Portuguese winger Diego Moreira on a free transfer when his Benfica contract expires this summer.