Bayern have confirmed there were signs of Musiala’s condition before the World Cup, but they had yet to affect him playing football.
Speaking to Sky Sports, honorary president Uli Hoeness said: “We have been aware of the problems for some time. But last weekend against Leipzig was the first time it happened on the pitch and was visible to everyone.
“We thought that if it didn’t happen again so quickly, the medication he is taking would help. But when it happened again four days later, in the same way, I was stunned.”
Many supporters questioned the decision to play Musiala so soon after he fainted on Saturday.
But Bayern officials have moved quickly to assure supporters the German international had been cleared to play on Tuesday by medical experts .
“We’ve already taken precautions,” added Hoeness. “The doctors treating him, the neurologists and specialists, have provided us with written confirmation – because this was absolutely essential for us – that, in their view, there are no concerns regarding Jamal taking part in high-performance sport.
“Without that, we would have been acting negligently. Since we’ve had this written confirmation, we’ve been sleeping a little more soundly.
“But I must say, I’m rarely at a loss for words or without a clear solution. We’ll have to feel our way through this new situation first.”
Kane said the players will rally around Musiala to give him all the support he needs.
“He is a great player, extremely talented,” he added. “He is a big part of our team. We feel really sorry for him and frustrated for him when things happen like they do in the last couple of games.
“He has the full support from everyone here at Bayern and his friends and family, and we will be there to help him deal with it.
“He came off the back of a tough injury last season, I know how much he works behind the scenes and on the training pitch. From our point of view it is just to be there to support him and not just from my point of view, but the whole team as well.”
