Bayern Munich have said a recent change to Jamal Musiala's medication was behind two collapses the midfielder suffered during pre-season friendlies in the space of four days. Head coach Vincent Kompany said the 23-year-old, who is being treated for a "neurological dysfunction" causing brief seizures, had made the change himself and that the resulting side effects were the cause, describing the situation as under control with expert medical support. The club say they have known about Musiala's condition since before last season and it had not previously affected his football, but the timing has put the issue in the spotlight as Bayern begin their title defence.

Musiala collapsed during matches against RB Leipzig and Heidenheim, and was ruled out of Saturday's German Supercup against Borussia Dortmund alongside Lennard Maloney and Serge Gnabry. Sporting director Max Eberl said the club were fully behind the player, who had chosen to make his condition public, and that it had become "part of everyday life" for the squad. Musiala, who has scored 69 goals and provided 37 assists for Bayern, will train individually this week before the Bundesliga opener against Stuttgart; medical experts note his symptoms are consistent with absence seizures, which are usually brief and treatable with medication.