For more than 15 minutes, Max Verstappen and his race engineer Gianpiero Lambiase were talking prior to the only free practice session in Austria. Sometimes the three-time world champion nodded, sometimes he sipped from his can of Red Bull. What the conversation was about could not be seen from a distance. There, of course, has been plenty to talk about at the Austrian team lately. On Friday morning, another topic could've been added, the argument between Jos Verstappen and Red Bull's team boss Christian Horner.