McLaren team boss sees Red Bull struggling: 'No idea what's going on there'

Red Bull Racing was unbeatable for years, but in recent weeks the Austrian team has had a tougher time. In Monaco, for instance, the two Bulls only find themselves in places six (Max Verstappen) and sixteen (Sergio Perez). That raises eyebrows, for example, with McLaren's team boss. Andrea Stella wonders aloud what is going on at the Austrian team.