A second man from Catford has been charged after an attack police officers on November 17.
Two officers were beaten in Merton, South London, after stopping a car for a routine check.
A video was released by a witness showing two men wearing hoodies dragging a policeman away from his patrol car and beating him.
His female colleague can be seen trying to pull the attackers off him, which fails after one of the assailants fly-kicks her chest, knocking her to the ground.
A motorcyclist ran in to intervene and the officers were taken to the hospital.
Metropolitan Police said the female officer endured head injuries, and her colleague suffered fractured rib and cuts in the brawl.
Martin Payne, 20, from south Croydon, appeared at Wimbledon Magistrates’ Court on Monday and pleaded not guilty. He was remanded in custody.
Police said a second man, Kursan Euell, 20, from Catford, had now been charged with two counts of actual bodily harm.
A third man is still being sought by police.
Ken March, Chairman of the Metropolitan Police Federation, said: “We’re going to come to a point where we’re going to start pushing messages out to our colleagues – ‘Risk-asses it dynamically and, if you think you can’t detain a person, just let them go’. We don’t come to work to get assaulted, and if we’re not going to be backed up in what we’re doing then what is the point?”
Anyone with information concerning the third suspect is asked to contact police at Merton via 101 quoting reference CAD 6952/17Nov.