'#ContraCR7' - Angry Atletico Madrid fans start social media campaign against signing Manchester United superstar Cristiano Ronaldo

Atletico Madrid fans have started a social media campaign (as reported by 90 Min) to express their disapproval of the club's interest in Manchester United superstar Cristiano Ronaldo.

The 37-year-old is looking for a new club this summer just a year after making a sensational return to Old Trafford. The Times reported that he's unhappy with their lack of transfer activities and isn't convinced with their ability to win titles either. Other reports say he's eager to play in the UEFA Champions League, which United cannot provide next season.

Ronaldo has also been absent from their pre-season tour so far due to personal reasons.

Bayern Munich, Napoli and Chelsea were among the clubs showing interest, but transfer rumours have since cooled off.

The Rojiblancos are the latest team to get linked with the former Real Madrid ace. Some reports in Spain suggest Diego Simeone's side are willing to sell Antoine Griezmann to make room for Ronaldo.

However, some fans are clearly not impressed with that, considering Ronaldo enjoys legendary status with their city rivals Los Blancos, as per Football Espana. Atletico supporters even started trending the hashtag "ContraCR7", which translates to "against CR7" on Twitter to make their feelings known.

According to some Spanish sources (tweet from centredevils), Atleti coach Diego Simeone loves Ronaldo and finds him a potential option like Luis Suarez but thinks the Portuguese could have a greater impact.

However, the Colchoneros are stacked with attacking options right now. So it will need an incredible manoeuvre from them to sign Ronado, who's apparently ready to take a 30% pay cut.

He has played against Atletico on more occasions than any other team, with 37 appearances throughout his career, winning 17 times and scoring 25 goals. Only against Sevilla (27) has Ronaldo struck more.

Ronaldo was also famously in the Real Madrid teams that beat Atletico in the 2014 and 2016 Champions League finals, playing an important role in both games. However, his latest meeting with the Rojiblancos was unsuccessful, as they beat his Manchester United team in the last 16 of the competition last season.

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Manchester United want to know when Ronaldo will return

Ronaldo's continued absence from their pre-season campaign has fuelled his exit rumours, although the club has said that it's due to 'family reasons'.

However, with Manchester United now only set to play two more games before the start of the 2022-23 Premier League season, they want clarification on when the 37-year-old will return.

New manager Erik ten Hag was recently asked about Ronaldo's situation at Manchester United. He said he'll integrate the forward once he's back.