Chelsea manager Jose Mourinho has branded his medical staff "naive" following Chelsea's 2-2 draw at home to Swansea City.
Mourinho was unhappy that the club physio ran onto the pitch to treat Eden Hazard six minutes from time, meaning the Blues had only nine men on the field for a short period.
Having already had goalkeeper Thibaut Courtois sent off in the 52nd minute, Chelsea had struggled to cope with Swansea pressure for periods of the second half and Mourinho was aggrieved that his star midfielder was treated despite not being badly injured.
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Speaking to Sky Sports following the final whistle, the Portuguese had this to say.
"I was unhappy with my medical staff. They were impulsive and naive.
"Whether you are a kit man, doctor or secretary on the bench you have to understand the game.
"You have to know you have one player less and to assist a player you must be sure he has a serious problem. I was sure Eden did not have a serious problem. He had a knock. He was tired."
Mourinho's frustration comes after the Champions' began their title defence with a draw against Gary Monk's Swansea side. Oscar had given the Blues the lead after his free-kick from the left evaded everyone in the penalty area to creep into the corner of Lukasz Fabianski's goal.
But, Swans debutant Andre Ayew equalised just six minutes later, prodding in the rebound after Courtois had done well to keep out Bafetimbi Gomis' header.
But they were level for all of 95 seconds. Willian's cross from the left was deflected by Federico Fernandez and looped over the helpless Fabianksi, to the delight of the Stamford Bridge faithful.
After half time though, the game changed. Gomes was brought down by Courtois in the 52nd minute and despite the Chelsea protests, referee Michael Oliver pulled out a red card for the Belgian 'keeper. After the game Jose said he didn't "want to talk about it".
New £8million man Asmir Begovic made his debut quicker than he probably expected, but Gomis stepped up to take the penalty himself and sent the former Stoke stopper the wrong way.
Mourinho, though, was happy with the fight his players showed.
"In one minute, it was a penalty, red card and the goal.
"If you have 10 men and are winning you can defend well and try to find a strategy but to play with 10 men and try to win the game is more difficult. I would say we were the best team with 11 players and with 10 we fought hard, some fighting at the limit of their condition."
Next up for Chelsea is a trip to Manchester City next Sunday, whilst Swansea entertain Newcastle a day earlier on August 15.
Chelsea fans, was Mourinho right to criticise his medical team? Let us know in the comments box below.