Stewart Robson looks at Jose Mourinho's projected lineups in a 3-5-2 and 4-3-3 formation.
Francesco Totti has confirmed he has accepted an offer from Roma to become a club director.
Real Valladolid have completed the signing of ex-Barcelona keeper Jordi Masip on a free transfer, while Barca signed four new players to their B team.
The Houston Dynamo signed Argentine midfielder Tomas Martinez as a young designated player on Monday.
Ernesto Valverde says Lionel Messi will continue to function in different roles with Barcelona.
Everton have announced the signing of former Southampton defender Cuco Martina on a three-year deal.