The Chelsea doctor Eva Carneiro, who has been stripped of her first team duties by Jose Mourinho, was twice beckoned onto the pitch on Saturday by referee Michael Oliver to treat Eden Hazard ahead of the incident which infuriated the Chelsea manager.

Carneiro was told on Tuesday that she would no longer be Chelsea’s on-field doctor on matchdays after the incident in which she and head physiotherapist Jon Fearn ran on to treat Hazard in the final minutes of the 2-2 draw with Swansea on Saturday – against Mourinho’s wishes.

Yet footage shows that in the moments before the Chelsea medical team entered the field of play the referee Oliver twice turned to the bench after Hazard went down, following a challenge from Gylfi Sigurdsson, and signalled for the pair to come on. If Carneiro was to take her case further then Oliver’s intervention in the sequence of events would be a powerful piece of evidence on her behalf.

Under the General Medical Council good medical practice guidelines, Carneiro would have been obliged to enter the pitch when referee Oliver called her on – regardless of whether Mourinho wanted her to treat the player or not. Ignoring that request would put her in breach of one of the GMC’s first tenets under the “safety and quality” responsibilities.

Doctors are advised that they are obliged by the GMC to “take prompt action if you think that patient safety, dignity or comfort is being compromised”. As medical care providers, Carneiro and Fearn are required to put the principles of the GMC above the wishes of their employer.

There have been GMC punishments in the past for sports medics who have failed to maintain the standards expected. In rugby union’s “Bloodgate” scandal of 2009, the Harlequins club doctor Wendy Chapman was suspended by the GMC for cutting the lip of winger Tom Williams during a Heineken Cup to disguise his use of a fake blood capsule which allowed his team to make a tactical substitution.

Chelsea 2 Swansea 2 player ratings Show all 27 1 /27 Chelsea 2 Swansea 2 player ratings Chelsea 2 Swansea 2 player ratings CHELSEA: Thibaut Courtois Was untroubled early on, but when called into action, made several comfortable saves to keep the home side in the game. He let himself down, though, by being sent off after rushing forwards and making a challenge on Gomis just inside the area. 5 Getty Images Chelsea 2 Swansea 2 player ratings Branislav Ivanovic Forayed forwards and even had a go at goal, though it was well high. He struggled to contain the pace of Montero in the second half although he tried to make up for it by attacking towards the end of the match. 5 AP Chelsea 2 Swansea 2 player ratings Gary Cahill Linked up well, as you’d expect, with his central defensive partner Terry and had a commanding presence in front of Courtois. 6 Reuters Chelsea 2 Swansea 2 player ratings John Terry The captain produced a brilliant last-ditch tackle to slow down Gomis’ shot, allowing Ivanovic to then clear the danger. 6 AP Chelsea 2 Swansea 2 player ratings Cesar Azpilicueta Ayew was a menace for the left-back but he did well in a position that he does not have any competition for, at the moment. 6 Getty Images Chelsea 2 Swansea 2 player ratings Nemanja Matic Made some good tackles in midfield to protect the back line but felt he didn’t have the presence he normally does. 6 Getty Images Chelsea 2 Swansea 2 player ratings Cesc Fabregas Last season’s top assist holder pulled the strings in midfield for the champions. 6 Reuters Chelsea 2 Swansea 2 player ratings Oscar Delivered a superb free-kick to open the scoring and really looked motivated following his summer assertion that he wants to challenge Hazard for the PFA Player of the Year award. 7 Getty Images Chelsea 2 Swansea 2 player ratings Willian Chelsea’s second goal may go down as an own one, but it was the Brazilian’s fine shot that created it. He proved a constant threat down the right flank. 8 Reuters Chelsea 2 Swansea 2 player ratings Eden Hazard Ran riot with his pace on the left flank but couldn’t get on the score-sheet. Looked bright for the home side. 7 Getty Images Chelsea 2 Swansea 2 player ratings Diego Costa Despite passing a late fitness test, the striker was sharp throughout the match although he couldn’t find the breakthrough moment to get a goal. His fitness will prove important if Chelsea want to retain their title this term. 7 Reuters Chelsea 2 Swansea 2 player ratings From the bench: Asmir Begovic ame on to replace the red-carded Courtois and couldn’t do much to stop Gomis’ penalty. But the goalkeeper made a good stop to keep out Montero’s shot later and handled all of his tests with ease. His recent performances will certainly put pressure on Courtois for the No.1 spot this season. 7 Reuters Chelsea 2 Swansea 2 player ratings Radamel Falcao Didn’t have much time to make a real impact with the game already 2-2. It remains to be seen whether he can resurrect his career at Stamford Bridge. 6 Getty Images Chelsea 2 Swansea 2 player ratings SWANSEA CITY: Lukasz Fabianski Ran off his line a few times early on to make some good save but was helpless to prevent Willian’s goal going in after Fernandez’s touch allowed the ball to loop over him. Saved a Hazard shot late on literally with his face but was commanding in goal for the visitors. 7 AFP/Getty Images Chelsea 2 Swansea 2 player ratings Kyle Naughton Struggled with Hazard’s pace but defended well otherwise. 6 Getty Images Chelsea 2 Swansea 2 player ratings Ashley Williams After confirming he will stay at the club this week amid links to Crystal Palace and Everton, Swansea’s captain put in a good display but made some cynical late challenges to keep Chelsea at bay. 6 AFP/Getty Images Chelsea 2 Swansea 2 player ratings Federico Fernandez The centre-back produced some good defending early on, but was lucky to have not conceded a penalty for his tackle on Costa in the first half. 5 AFP/Getty Images Chelsea 2 Swansea 2 player ratings Neil Taylor The combination of Willian and Ivanovic caused the defender problems with the Brazilian, in particular, regularly finding space behind him. 5 Getty Images Chelsea 2 Swansea 2 player ratings Gylfi Sigurdsson Saw his attempt at goal stopped by Courtois, could have done better, but was otherwise quiet. 6 Getty Images Chelsea 2 Swansea 2 player ratings Jonjo Shelvey The only thing he didn’t get in this game was a goal. He was consistently involved in Swansea’s attacks from midfield, providing key crosses to his teammate, and was a constant nuisance for the Chelsea players. 7 Getty Images Chelsea 2 Swansea 2 player ratings Ki Sung-yeung Came off with an injury just before half-time but did make one key piece of play in attack when he fired a shot at Courtois. One felt he could have done better there. 6 Reuters Chelsea 2 Swansea 2 player ratings Andre Ayew The former Marseille player looks to be a fabulous free transfer for Swansea after scoring the equaliser and forcing Chelsea to deal with his pace while helping his colleagues by tracking back and defending. 8 Getty Images Chelsea 2 Swansea 2 player ratings Jefferson Montero Provided tons of pace for Swansea down the left wing and whipped in some dangerous crosses for Gomis in the first half. He then came out in the second period and really troubled Ivanovic, regularly getting in behind the right-back and threatening to score. 7 AFP/Getty Images Chelsea 2 Swansea 2 player ratings Bafetimbi Gomis The striker should have opened the scoring for the visitors with his two early chances, but he made up for it with a well-taken penalty in the second half. He was involved in almost every single Swansea attack and also dropped back to defend. A fine showing for the striker. 9 Getty Images Chelsea 2 Swansea 2 player ratings From the bench: Jack Cork Came on in the 40th minute and made a few early tackles, which resulted in a booking. But his work helped protect the back four. 7 AP Chelsea 2 Swansea 2 player ratings Wayne Routledge Went for goal within minutes of coming on but was stopped by Begovic. A good cameo appearance. 6 Getty Images Chelsea 2 Swansea 2 player ratings Eder The summer signing from Braga came on in the second half and didn’t have much to do – but did make a key intervention to put a stop to Ivanovic’s late attack. 6 Getty Images

Mourinho reacted furiously to his medical team treating Hazard and thus necessitating the player’s withdrawal for the next phase of the game. He criticised Carneiro and Fearn afterwards for failing to “understand the game”, but the situation escalated on Tuesday when Carneiro was told she would no longer serve as the matchday doctor, nor would she travel with the team or even work with them during training sessions on the pitches at Cobham.