Audio By Carbonatix
The Spanish football league wants Uefa to investigate whether Manchester City have broken financial fair play rules.
European football's governing body is already investigating if Paris St-Germain have broken the rules, designed to stop clubs from 'financial doping'.
La Liga president Javier Tebas said City and PSG's "funding by state-aid distorts European competitions".
However, BBC Sport understands Uefa has no intention of opening an investigation into City at this stage.
City and PSG spent hundreds of millions of pounds on new players this summer. Tebas said their spending "creates an inflationary spiral that is irreparably harming the football industry".
PSG have been owned by the Gulf state of Qatar, via its Qatar Sports Investments fund, since 2011.
They more than doubled the world record transfer fee when they spent 222m euros (£200m) to sign Neymar last month, before adding Kylian Mbappe on loan from Monaco, a deal that is expected to be made permanent for £165.7m in 2018.
Manchester City's summer spend of £215m was the biggest by any club in any transfer window.
The Premier League club was bought by The Abu Dhabi United Group in 2008.
A La Liga statement released on Monday confirms it wrote two letters to Uefa on 22 August - one to express concerns over the French club, and another relating to City.
The body claimed that "both PSG and Man City benefit from sponsorships that make no economic sense and lack any fair value".
The statement continued: "La Liga calls on Uefa to proceed with its investigation, taking into account the full history of PSG's actions. Additionally, La Liga calls on Uefa to open a similar investigation into Man City."
Latest Stories
-
Pope praises young people’s ‘energy and commitment’ at huge open-air Mass in Paris
4 seconds -
Nyankamam residents benefit from free medical screening, healthcare outreach
5 minutes -
Ghana, Boeing explore setting up regional aircraft maintenance hub
6 minutes -
Bangkok roads submerged as flood disaster declared
6 minutes -
Four killed in helicopter crash near Montreal
12 minutes -
Ghana could have national airline back in skies within 18 months – Boeing to Mahama
19 minutes -
NDC suspends vetting exercise in Krowor constituency, reschedules to September 29
37 minutes -
Extractive firms urged to strengthen cyber defences as digital risks grow
50 minutes -
Photos: Mahama engages Ghanaian diaspora in New York on Ghana’s economic recovery
52 minutes -
Man jailed 10 years for defiling 11-year-old girl at Kpandai
2 hours -
At least 27 people killed in two shootings in South African township
2 hours -
Iranian minister says only negotiation can end conflict after Trump rejects Hormuz deal
2 hours -
Some Ghanaians use free speech to destroy reputations – Bobby Banson
3 hours -
Crowds, deals and home solutions as Republic Bank-JoyNews Habitat Fair enters final day
6 hours -
Fire Service finds only five functional hydrants in Ministries enclave
6 hours