But such was Pep Guardiola's team's domination of the Premier League last season that reinforcements hardly seemed necessary and the solitary addition of Riyad Mahrez makes an already potent attack even more fearsome.
City's dream of a quadruple of titles ended with their away-goals loss after Wednesday's second-leg ended with a 4-3 win, but a 4-4 aggregate score.
The Argentine joined Barca on a free transfer during the close season, but made only five appearances in all competitions due to a calf injury and his cardiac issues, scoring once in a 2-1 home defeat by Real Madrid.
Images from Wednesday's Champions League matches, between Real Madrid and Paris St Germain, and Manchester City and Sporting CP
Images from Saturday's action in the Premier League.
Following are facts and figures after Manchester City clinched the Premier League title
Images from Saturday's action in the English Premier League.
Barcelona hammered Real Valladolid 4-0 at home on Sunday to retain their La Liga crown and brushed aside any doubts that they were about to be usurped by Real Madrid as the top club in Spain.
Manchester City had a late goal from Gabriel Jesus ruled out by VAR video review as they drew 2-2 at home to Tottenham Hotspur on Saturday -- their first league home game without victory in nearly eight months.
Spanish media claims that the Barca talisman was in talks to move to City, a claim that City coach Guardiola denies.
Alves joined Barcelona from Sevilla in 2008 and made 391 appearances, becoming a regular under ex-managers Pep Guardiola, Tito Vilanova, Tata Martino and Luis Enrique before leaving for Juventus in 2016.
English Premier League champions Manchester City cruised to a 2-0 win over struggling Manchester United in their derby at Old Trafford on Saturday.
The perfectionist in Pep Guardiola forbids him to get remotely carried away by Manchester City's 100 per cent record this season even though they made it 10 wins out of 10 under their new Spanish manager on Saturday.
Barcelona were drawn in Group E with Bayern Munich, Benfica and Dynamo Kyiv.
It will be a poignant evening, with both games -- City vs Arsenal and Aston Villa vs Sheffield United -- played inside empty stadiums and marked before kickoff by a minute's silence for the more than 40,000 people to die of the virus in the UK.
Manchester City moved 13 points clear at the top of the English Premier League table after a 2-1 win over West Ham United on Saturday - their 20th straight win in all competitions.
Lionel Messi, who is Barcelona's all-time top scorer with 634 goals in 731 games, is expected to spend three seasons at Manchester City before moving to CFG's Major League Soccer franchise New York City FC.
Edge Southampton 2-1 to take campaign to final day of the season.
A summary of sports events and persons who made news on Tuesday.
Manchester City said in a statement that both players did not display any symptoms and are currently self-isolating in line with protocols established by the Premier League and the British government.
"Barcelona and Sergio Busquets signed this morning an agreement to renew the player's contract, which will end on June 30 2023," Barca said in a statement.
Aguero will not start against Man United: Guardiola.
Arsenal's defence of the trophy ended with something of a whimper as Mikel Arteta's side struggled with repeatedly sloppy defending.
Images from the English Premier League matches played on Sunday.
Thousands of Manchester City fans lined the streets as the English Premier League champions celebrated with open-top bus parade.
Manchester City must rebuild for title challenge: Guardiola
PSG went ahead in the first half, but Mauricio Pochettino's side lost control after the break
A round-up of Saturday's action in the Premier League.
'I always said I wanted to play abroad but the only thing that would stop me was if I was winning and successful on home shores. I was lucky I found a great club at Manchester United it would've been almost impossible for me to leave'
'By giving cameras unimpeded access to their world-class training facilities and coaches, and by showing off Guardiola's genius, All Or Nothing is a striking show of power, a declaration of their conviction of being the bigger club in Manchester,' says Dhruv Munjal.
IMAGES from the English Premier League matches played on Saturday.
Arsenal must trust in Arteta, says Guardiola.
Images from the English Premier League matches on Saturday.
City, storming towards their third league title in four years, scored three late goals to wrap up victory and move onto 65 points with 11 games left to play ahead of Manchester United on 50 points with a game in hand.
A clash between supposedly the two most expensive lineups in history overseen by two of the most decorated coaches will end the phoney war and ignite the Premier League season for real when Manchester United host Manchester City on Saturday.
Liverpool boss Juergen Klopp has beaten Manchester United only twice in his career and never at Old Trafford -- his worst record against any Premier League side.
City winger Riyad Mahrez and defender Aymeric Laporte previously tested positive for the novel coronavirus earlier this month.
Pizzas are off the menu for Manchester City players as manager Pep Guardiola has imposed strict weight parameters on the squad breaching which will result in training bans, left back Gael Clichy has said.
Trippier suspension temporarily halted by FIFA
All the action that transpired on and off the football field
