Footage of the Eden Hazard incident against Swansea appears to show him asking for treatment.
The pictures, used to piece together the sequence of events that led to Chelsea's medical staff entering the pitch to treat the player, appears to support claims they were called on by the referee.
Jose Mourinho was seen at the time remonstrating with his staff and afterwards went public with his criticism of their actions.
In the footage Hazard is shown collecting the ball just inside the City half from team-mate Radamel Falcao then surging forward during Saturday evening's Premier League clash at Stamford Bridge.
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The Belgian changes direction and goes past Ashley Williams before being clipped by his opponent and falling to the ground.
Hazard looks to be in discomfort when he lands face down and rolls on to his right side holding his groin then back on to his front with a pained look on his face.
He remains in that position for a few seconds before referee Michael Oliver, having booked Williams for the foul, walks over and seems to ask Hazard if he requires treatment.
Oliver then calls on Chelsea's medical staff and when they do not respond at first, he nods to give them permission to come on at the player's request.
Physio Jon Fearn enters the field of play first and is quickly followed by club doctor Eva Carneiro, something which sparks an angry reaction from Mourinho.
He steps on to the pitch himself before turning around, walking back over the touchline and shouting in the direction of the home dug-out.
When the medics return to the technical area after treating Hazard, Mourinho confronts Carneiro first.
There is an exchange of words between the two, with the Portuguese animatedly pointing to the pitch and shouting.
Fearn follows Carneiro a few seconds later but avoids eye contact with Mourinho, who addresses him gesturing. The physio does not respond.
Mourinho described the pair as naive after the match but Premier League rules state Carneiro and Fearn did nothing wrong.
The protocol is that when a player goes down, the referee will speak to him and ask if he wants medical attention.
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Hazard appeared to do that in this instance and after Oliver was told to summon the medics, the match official gestured to the bench twice in order to allow them to enter the field of play.
A range of medical professionals have backed Carneiro and Fearn, with many insisting they had a duty of care to Hazard in a situation where he appeared to be hurt and needing help.
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