F1 Miami GP track undergoes more overnight resurfacing work

In another change the FIA has decided to remove the two kerbs at the left/right chicane at the pit entry, and replace them with bollards.

Issues with the track surface first emerged on Thursday before any proper circuit action, after safety car and VIP laps activity.

Patches of damage appeared at both Turn 17, the hairpin before the start/finish straight, and Turn 7, the tightening left hander on the outside of the fake marina.

Both instances were believed to be due to a…