- Verstappen gives Hamilton middle finger after incident
- Tension between pair threatens to boil over in Austin
Angst in Austin is an unfamiliar emotion for Lewis Hamilton, but the Mercedes team principal, Toto Wolff, is worried that engine problems could thwart the British driver’s title hopes.
This is usually a productive circuit for Hamilton, who has won five of the eight contests held here and often cites it as one of his favourite races. Yet Mercedes’ reliability worries cast a shadow over the buildup to Sunday’s US Grand Prix on an unusually tetchy practice day.