Welbeck was available on a free transfer after leaving Watford earlier in October following their relegation from the Premier League last season.
Mario Gotze joins PSV Eindhoven, Jack Wilshere, Daniel Sturridge among big-name free agents available
Even though the transfer window has closed in Europe's major leagues, free agents remain available to be signed by teams in need of reinforcements.
Llorente, capped five times by Spain, began his career at Real Madrid and moved to Sociedad in 2017. He made 88 appearances in all competitions for the team, scoring eight goals.
Mendy will compete for a starting spot with Kepa Arrizabalaga, who has struggled for form and confidence at Stamford Bridge.
The much-travelled Morata, who is 27, had earlier played for Juventus from 2014-2016, scoring 27 goals in 93 appearances.
Bale arrived at Spurs' training ground on Friday and is expected to agree a one-year loan with the club he left for a world record 100 million euros in 2013.
Juventus paid the 90 million euros release clause to sign Higuain from Napoli in 2016, and he had unsuccessful loans at AC Milan and Chelsea before returning to Turin last season.
Premier League: Bayern Munich confirm Thiago Alcantara move to Liverpool after seven years in Bundesliga
Bayern head coach Hansi Flick congratulated Liverpool manager Jurgen Klopp on landing Alcantara, who he described as an "exceptional player".
Rodrigo, who can operate as a winger or striker, spent time at Celta Vigo and Real Madrid as a young player before moving to Benfica. He joined Valencia in 2014, initially on lona.
In a case involving France defender Clément Lenglet, the Court of Arbitration for Sport ruled Thursday that clubs must pay a sell-on fee when transferring a player whose release clause was activated.
Centre back Rio Ferdinand had contact with Barcelona and their then coach Frank Rijkaard around the time of United’s Champions League semi-final tie with the Spanish club
Real Madrid’s last minute decision to insist on a transfer fee ended the club’s hopes of offloading Welsh winger Gareth Bale to Jiangsu Suning, the Chinese Super League side’s head coach Cosmin Olaroiu said
LaLiga: Emotional and tearful 18-year-old Reinier Jesus presented as Real Madrid player at Santiago Bernabeu
Reinier is the third Brazilian teen signed by Madrid in recent seasons, following Vinícius Júnior and Rodrygo. Vinícius also played for Flamengo
Newcastle United said they have signed defender Danny Rose from Tottenham Hotspur on loan until the end of the season.
Premier League: With transfer ban lifted, Chelsea manager Frank Lampard raises prospect of Edinson Cavani bid
Chelsea manager Frank Lampard is keen on bringing more experience into his squad now that the club's transfer ban has been lifted.
Premier League: Two arrested in transfer fraud raids in Belgium, Monaco, London over Aleksandr Mitrovic's move
Under the direction of Belgium's anti-corruption judge, police and tax officials swooped on Tuesday and Wednesday, detaining an agent in Monaco and his assistant in the Belgian city of Liege.
After joining Barca's academy aged 10, Kubo returned to Japan in 2015 as a result of FIFA sanctions handed to the club for breaching rules on signing under-age players.
Premier League transfer window: From Moise Kean to Kieran Tierney, top 5 shrewd signings in the summer
As per Guardian, 419 deals were made involving English Premier League clubs over the summer transfer window with £1.79 billion spent.
Romelu Lukaku completes long-awaited move to Inter Milan from Manchester United as transfer deadline ends
Lukaku, Belgium's all-time top-scorer with 48 goals, did not play a single minute of United's pre-season campaign ahead of the move, and has been pictured training instead with Anderlecht, the club with which he started his senior career.
Premier League: Leicester City defender Harry Maguire signs for Manchester United on reported world-record fee of £80 million
Harry Maguire completed a blockbuster move to Old Trafford for £80 million thus becoming Manchester United's second biggest signing.