At least 4 of the teams have had their freight delivery delayed due to fog in Mexico meaning that they could not go through their normal preparations. This comes in the middle of a triple header and all long haul flights involved. It seems all the teams are able to get their preparations done with a revised Thursday timetable but this should be a wake up call for back to back races with long distances involved.
https://www.autosport.com/f1/news/ex...razil/6773917/