Mercedes boss Toto Wolff  is “a bit nervous” of a 2016 repeat with Lewis Hamilton now battling Valtteri Bottas at the Spanish Grand Prix.

The Silver Arrows duo locked down the front row ahead of Sunday’s race, but attentions have already turned to the history books and to one of the biggest chapters in Hamilton’s rivalry with Nico Rosberg in 2016.

The pair collided just four corners into the race when battling for P1 and ended in both cars being marked with a DNF in the results column.

Hamilton and Bottas briefly squabbled over first place at the start of the Azerbaijan Grand Prix last time out and Wolff is hoping that the battle does not escalate further.