Spa: Lewis Hamilton revealed yesterday that he may not be able to trust his Mercedes teammate Nico Rosberg in their future on-track duels for the drivers' world title.


Mercedes' Nico Rosberg (right) collides with teammate Lewis Hamilton during the Belgium Grand Prix in Spa on Sunday and (Inset) Lewis Hamilton. Pics/AFP 

Hamilton was forced to retire from Sunday's Belgian Grand Prix after suffering a puncture when Rosberg drove into him on the second lap, said he was uncertain how to approach the next race, the Italian Grand Prix at Monza on September 7.