Defenders Diego Godin, Filipe Luis and Lucas Hernandez have left, while Brazilian pair Renan Lodi and Felipe has already signed.
Joining from Tottenham, the right-back adds depth in an area where Simeone is not convinced by Sergio Arias and Sime Vrsaljko looks set to miss much of the start of LaLiga Santander due to injury.
Thunder discussions to move Chris Paul are 'parked'
The hope is something happens after mid-December, when anyone who signed a free-agent deal is eligible to be traded. For now, Oklahoma City doesn't feel a need to surrender draft compensation to unload Paul's contract, sources said.
Now, Trippier will discover a new league next season.
A former Real Madrid B-team player, 24-year-old Hermoso improved drastically last season as Espanyol finished seventh in the Liga Santander to qualify for the knockout stages of this season's Europa League and his performances also earned him a call up into the Spanish national team squad.
Trippier may well be able to extol the virtues of leaving Spurs for Madrid, pushing Daniel Levy to try and find a replacement in the market. Danny Rose hasn't travelled with the squad to Singapore for their pre-season tour of Asia.
There were rumors of a potential move to Italy where Juventus seemingly came out of nowhere, interested in the 28-year-old.
Instagram is expanding its hidden 'Like' test to more countries
Aussie users will now notice that posts will show a user name "and others like this" below a post instead of the number of likes. And also some user thinks that they lack attention on Instagram due to the highest likes in a pic or video.
Trippier signed a new five-year deal at Spurs in 2017 but now appears set to leave north London and make the move to the continent.
It's believed the England global would prefer a move to the north of England, closer to his South Yorkshire roots.
In 2015, the sportsman left Burnley to collaborate with Spurs and had up to a hundred appearances for them. He only has one year remaining on his contract at Craven Cottage and will need to be sold this summer.
Criminal charges dropped against actor Kevin Spacey
The young man and his family met with prosecutors Sunday and he decided not to waive his right to invoke the Fifth. The decision comes after the man accusing Spacey suddenly dropped his civil lawsuit against the Oscar victor .