New footage revealed by The Independent has shown Jose Mourinho apparently losing his temper with another young fan as he tried to take a photo.
Sonnie Burgess was with friend Otto Nahmmacher when they spotted the Chelsea manager walking along a street in Knightsbridge on Sunday.
The 16-year-old described their encounter in an exclusive interview with The Independent, saying: “We were cycling home when we bumped into Mourinho and asked him for a picture and I was recording it.
“He was giving me dirty looks and he was being quite anti-social and aggressive.”
As the manager ignored the teenager and carried on walking, talking on his phone, Sonnie asked for a photo again and was refused.
Otto alleged that he was "shoved" moments later as he attempted to capture a selfie with the 52-year-old football manager.
Sonnie claimed Mourinho then walked away without making any move to apologise to the teenagers, adding: “We were genuinely scared.”
He said he was left shocked and upset by his hero’s reaction.
“I love Chelsea and I love Jose Mourinho and I lost so much respect for him,” Sonnie added. “He was my hero and now it’s crushed everything.”
Sonnie, who lives in Battersea and is in his last year at a secondary school in Wandsworth, said the incident started at around 3.15pm and was over less than 10 minutes later.
“I’m a season ticket holder but I’m thinking of cancelling it,” he added. “It’s completely changed me.”
Chelsea had enjoyed a comfortable 2-0 home win over Aston Villa the previous day and drew in a goalless Champion’s League draw with Dynamo Kiev on Tuesday.
The result compounded a difficult start to the season for the Blues and their manager, who was fined £50,000 by the Football Association for criticising a referee and publicly admonished Chelsea medic Eva Carneiro, who subsequently left the club.
Chelsea did not respond to The Independent's request for a comment.