The guard was knocked over after Chelsea's defeat by Inter Milan
Chelsea FC captain John Terry injured a security guard's leg as he drove out of the club's Stamford Bridge ground and then left the scene.
The club said Terry's 4x4 hit deputy security manager Steve Rowley as he drove slowly through a crowd of fans and photographers after Tuesday's game.
Mr Rowley, who was left with a badly bruised leg, said he did not blame Terry and there was "no bad feeling".
Chelsea said Terry was aware of "a lot of contact" with his car.
However, they said he did not think anyone had been injured.
Chelsea suffered a 1-0 defeat by Inter Milan in the Champions League last-16 match on Tuesday.
A Metropolitan Police spokesman said Terry was later breathalysed by Surrey Police at his home in Oxshott and investigations were continuing.
Police had initially said Mr Rowley had been left with a broken leg. However, the security guard said it was only "badly bruised".
Mr Rowley said: "John was quickly in contact with me once he realised what had happened and there's no bad feeling at all on my part.
"It wasn't his fault at all, it was a complete accident."
He added he would not be commenting further on the matter.
A Chelsea spokesman said: "We can confirm there was an unfortunate accident as John Terry left Stamford Bridge last night.
"When driving out of the stadium at approximately 1-2 mph in a queue of traffic exiting the ground, his car was surrounded by photographers and fans.
The club said John Terry's car was surrounded by photographers and fans
"In the melee that ensued a member of Chelsea's security staff was knocked to the ground, making contact with the car. He suffered a badly bruised leg.
"John was aware at the time that there was a lot of contact with his car during the incident, but not that anyone was injured as a result.
"Upon hearing of the injury, John spoke to the police. He has also been in contact with the staff member to check on his welfare."
The Metropolitan Police said officers were called to Stamford Bridge at 2313 GMT.
A spokesman said a 35-year-old man had been taken by ambulance to a west London hospital and added: "The 4x4 car did not stop at the scene. Inquiries into the incident continue."
The London Ambulance Service confirmed one of its crews had treated a man for a "leg injury" and driven him to hospital.
Terry was recently sacked as England captain by manager Fabio Capello following allegations he had an affair with an England team-mate's ex-girlfriend.
He is alleged to have had an affair with Vanessa Perroncel, the ex-partner of England and former Chelsea defender Wayne Bridge, who now plays for Manchester City.