Pep Guardiola has been charged by the Football Association (FA) over the yellow ribbon he wears during matches in solidarity with political prisoners in his native Catalonia.
The Manchester City manager began wearing his ribbon after Jordi Sanchez and Jordi Cuixart were placed in custody as part of the crackdown that followed last October's referendum on Catalan independence – a poll the national government in Madrid deemed to be illegal.
A statement issued by the FA read: "Pep Guardiola has been charged for wearing a political message, specifically a yellow ribbon, in breach of The FA's kit and advertising regulations.
"He has until 6pm on Monday, March 5 to respond to the charge."
City will play three games before that deadline – Sunday's EFL Cup final against Arsenal, a trip to the Emirates Stadium to face the Gunners in the Premier League on Thursday and Chelsea's visit to the Etihad Stadium next weekend.
Guardiola has been a vocal proponent of Catalan independence and the FA charge was the second time on Friday his political alignment placed him in the headlines.
Speaking at a news conference to preview the EFL Cup final, the ex-Barcelona boss confirmed Spain's Guardia Civil had searched his family's private plane when it landed at El Prat airport earlier this week. Reports in Spain claimed the law enforcement officials were looking for former Catalan president Carles Puigdemont, who has been living in exile in Belgium since October.
"That's something that my wife explained to me. It happened like it's being published in the news," Guardiola told reporters.
Ahead of December's derby match at Old Trafford, Manchester United manager Jose Mourinho suggested Guardiola was receiving preferential treatment by not being subjected to FA sanctions for wearing the yellow ribbon.
After his side beat United 2-1, Guardiola responded by stating he would be willing to take a suspension for supporting his cause.
"I do that because in Spain two specific people who defend something bold are in prison. It is unfair," he said.
"To rebel like that, you have to be something tough to be in prison, and they are still there. Until they are out, always they will be with me. They can suspend me for that but the other people are in jail.
"Jordi Cuixart and Jordi Sanchez are in prison without their families. They want to suspend me - UEFA, the Premier League, FIFA - it's OK. I will be suspended."
|Suarez earns 100th Uruguay cap|
|You´ve got to look beyond football - Denmark chip in to fly new father Knudsen home|
|Neymar returns to Brazil training after injury scare|
|No passports required - Burnley´s 51-year wait for European tie sees Clarets draw... Aberdeen|
|Huddersfield bring in Bacuna to boost midfield|
|Forget the GOAT and the goatee - just enjoy Ronaldo and Messi|
|Ronaldo bearing down on Daei after going past Puskas - The top five goalscorers in international foo|
|Portugal 1 Morocco 0: Record-breaker Ronaldo sends Renard´s men out|
|Halep pulls out of Eastbourne International|
|Brazil v Costa Rica: Coutinho ready for more Selecao toil|
|Muller and Bierhoff dismiss reports of German disharmony|
|Mooy can play at a higher level, says Socceroos boss Van Marwijk|
|Remarkable Ronaldo breaks Puskas´ European record|
|Belgian Grand Prix deal agreed until 2021|
|Isco: I´m not going to speak to Ronaldo again!|
|Slater expects to be fit for Origin II|
|Curran and Overton added to England ODI squad|
|Hussey fears Australia will be left with ´mental scars´|
|Fabianski swaps Swansea for West Ham|
|Loftus-Cheek ready to replace Alli|
|England are a team now - Rashford|
|Lazaridis calls for Cahill to start against Denmark|
|Arzani and Ryan can play at the highest level, says Bosnich|
|Dust (Ja)pan and brush: Blue Samurai fans clean up in Saransk|
|Lodge reaches agreement over New York attack|
|Gerrard can become a strong manager - Arena|
|Arsenal target Torreira has left for €30m, says Sampdoria chief|
|Murray unsure over Wimbledon participation|
|De Gea has to bounce back from Ronaldo shocker - Bosnich|
|Martinez not looking for perfection|
|Farah´s Wests Tigers return confirmed|
|Cubs get extra-inning win to split doubleheader with Dodgers|
|Denmark will ´struggle´ if Australia stop Eriksen, says Jakobsen|
|Astros´ win streak ends at 12|
|Lahm backs Germany, Low after losing start|
|Messi has all our support – Dybala|
|Strickland apologises for ´stupid decision´ that led to broken hand|
|Five-time Open Championship winner Thomson dies aged 88|
|´Positive´ Pogba not bitter towards media, says Varane|
|Portugal privileged to have ´humble´ Ronaldo, says Pepe|
|Strickland breaks hand punching door after blown save, out for up to eight weeks|
|He will have received good money – Costa delighted by Griezmann extension|
|Kane: Pochettino sent me love hearts after World Cup heroics|
|Nationals place Adams on 10-day DL with broken finger|
|Dybala: I can play alongside Messi|
|Lewandowski: Poland didn´t take enough risks|
|England´s Kane aiming to reach Ronaldo, Messi levels with World Cup performances|
|Kicker given three-year match-fixing ban|
|England confirm Alli thigh injury|
|Federer through, Zverev out in Halle|
|Back on the map and earning letters from ladies, Tabarez embraces Uruguay´s heritage|
|Rampant England rout Australia in record-breaking display|
|Pulisic in right place at Dortmund, says Arena|
|Wilshere confirms Arsenal exit|
|NASCAR at Sonoma: TV schedule, standings, qualifying drivers for Toyota/Save Mart 350|
|Muguruza and Kvitova cruise through in Birmingham|
|Leno among top 10 most expensive goalkeepers|
|Pained Salah unable to halt Russia´s unlikely march|
|Kyrgios downs ´legend´ Murray as Dimitrov and Djokovic progress|
|Neymar pain normal – Coutinho unconcerned by ankle issue|
|Russia 3 Egypt 1: Salah strikes but hosts right on course for last 16|
|We must make Ronaldo less exceptional, says Morocco boss Renard|
|Chandimal handed one-Test ball tampering ban, faces further ICC charge|
|Arsenal sign goalkeeper Leno from Leverkusen|
|Mexico style in Germany win surprised Arena|
|Monaco complete €20m move for Lyon teenager Geubbels|
|Saudi team don´t know cause of aeroplane fire, Pizzi reveals|
|Champions League qualifying draw: Celtic travel to Armenia, Ajax face Sturm Graz|
|I´ve never seen a player win on his own – Santos shrugs off Ronaldo dependence|
|Murray impresses despite narrow defeat on return|