Rosberg could be getting reprimand, fine or grid penalty. Rule giving a maximum time between the two safety car lines, in effect to increase the speed of cars on track for safety reasons. So if you take too long on a in/out/cool down lap you can be punished. The between safety car lines(ie 90% of the track, first to last safety car line, not the other way around) is 1:45 and Nico did a 2:2x time, he's been summoned to stewards about it.
The other Nico also had his fastest lap removed so drops to 9th officially, Sainz to 8th, though with Vettel's penalty I presume that puts Hulk back to 8th anyway.