Lionel Messi and Inter-Miami co-owner David Beckham were booed Sunday and angry fans demanded refunds after the Argentina superstar sat out the team's pre-season friendly match in Hong Kong.
The city government said organizers owed fans an explanation after the match, in which the visitors beat a Hong Kong select XI by four goals to one.
The World Cup-winning captain, Messi, who has a hamstring strain, stayed rooted to the bench throughout.
That brought a show of anger from the near-capacity crowd of 38,323, who had paid upwards of 1,000 Hong Kong dollars ($125) to see their hero, and in many cases five times that amount.
Halfway through the second half, chants of "We want Messi" rose around the Hong Kong Stadium from fans desperate to see the greatest footballer of his generation in the much-hyped exhibition game.
The booing became louder during the last 10 minutes when it became clear that the eight-time Ballon d'Or winner would not make even the briefest of cameos.
The jeers rose to a crescendo at the final whistle, and Beckham was drowned out by booing as he tried to thank the crowd for "their incredible support" while fans signaled their anger with thumbs-down gestures.
"I'm just really disappointed,” football fan Jonathan Wong told AFP. "Everyone is here to see Messi, so I feel a bit cheated.
"Without him it's just like another regular Hong Kong Premier League match, where a ticket only costs HK$80 ($10). This time we paid HK$5,000 ($639)."
Miami coach Gerardo Martino said the club's medical team had taken the decision after an assessment Sunday morning.
"We understand the disappointment of the fans for the absence of Leo (Messi)," Martino told reporters.
"We understand a lot of fans are very disappointed and we ask for their forgiveness.
"We wish we could have sent Leo on for at least a while, but the risk was too big."
The 36-year-old Messi played just six minutes in Miami's last match, in Saudi Arabia on Thursday, and now faces a race against time to be fit for the new MLS season that starts on February 21.
Bitter end to 'Messi mania’
It was a bitter end to days of Hong Kong "Messi mania."
Tens of thousands turned up Saturday just to watch him train, when he did little more than jog and stretch.
The team hotel was besieged by hundreds of fans trying to glimpse their hero, and a traditional junk boat was cruising around Victoria harbor with Messi's face plastered across its sails.
Messi shirts had been flying off the shelves after tickets for the match sold out in an hour when they went on sale in December.
Echoing the fans' anger, the Hong Kong government said it could withdraw 16 million Hong Kong dollars ($2 million) of funding to the organizers that helped bring Inter Miami to the city.
"The organizer owes all football fans an explanation," it said.
In a statement, organizers of the event — dubbed "Tatler XFEST" — expressed their "extreme disappointment" that neither Messi nor his Uruguayan teammate Luis Suarez took part in the match.
"Despite some news reports, Tatler did not have any information about the non-participation of Messi or Suarez prior to kick off," they said.
In addition to the missing illustrious South American duo, Miami's starting line-up featured neither of their other former Barcelona stars, Sergio Busquets and Jordi Alba.
Robert Taylor opened the scoring for the MLS side in the 40th minute with a delightful right-foot curling shot from the left-hand edge of the box.
Two minutes later Hong Kong's Henri Anier laced a left-foot finish home to make it 1-1.
Miami regained the advantage after half-time when Lawson Sunderland found the target from close range, and Leonardo Campana increased the lead in the 56th minute.
Busquets and Alba finally appeared from the bench after 62 minutes, to a smattering of cheers.
Ryan Sailor rounded off the scoring for Miami in the 85th minute with a glancing header.
It was Miami's first win in five matches on their globe-trotting pre-season tour, which heads to Japan for a friendly game against Vissel Kobe on Wednesday.
