Pozzovivo was involved in the collision while training near Cosenza in southern Italy.
Polish news website Onet reported Lambrecht collided with a concrete structure around 30 kilometres (19 miles) into the race after it suddenly began to rain.
Froome, who has seven Grand Tour victories to his name (two Vuelta and one Giro being the others), said all he was targetting was being alongside his team-mates at next year's Tour de France.
The stage itself was won by 2014 winner Vincenzo Nibali who broke from the main contenders late in the final climb to win by 17sec at the line where he raised his finger to his lips, kissed it and raised it to the sky.
The stage from Albertville to Val Thorens in the French Alps will now be raced over just 59km rather than the scheduled 130km.