Maradona had been present for all three of Argentina's group games and was once again an animated figure at the Luzhniki Stadium in Moscow, but the Guardian's Ed Aarons reported he was later sent to hospital:
Twitter user Steve Spoiler posted footage of Maradona requiring assistance to leave the Luzhniki Stadium, via Sports Illustrated:
Marcos Rojo volleyed in an 86th-minute winner for his side after Victor Moses' penalty had cancelled out captain Lionel Messi's opener, meaning Argentina finished as Group D runners-up behind Croatia.
As good as the entertainment on the pitch was in Moscow, former national team manager Maradona continued his trend as something of a sideshow in the stands.
The 57-year-old prayed to the heavens when Messi netted a brilliant breakthrough, but Match of the Day's Gary Lineker took umbrage with his middle-finger gestures following Rojo's winner, per the Independent:
Maradona has followed Argentina as they toiled in the group stage, with the team looking to replicate his success at the 1986 World Cup, where he led the team to their second of two world titles.
The Argentina icon was previously hospitalised as recently as the beginning of June, just prior to the World Cup, although that was reported to have been due to knee problems, per the Mirror's Alex Cope.
Maradona's struggles to depart the stadium on Tuesday were a concern after he had appeared so lively during his side's win only to suddenly drop after the full-time whistle.
The football community will be hoping one of the most well-remembered World Cup stars is back on his feet soon, with Argentina next in action on Saturday, when they'll face Group C winners France at the Kazan Arena.