If the rain stays away, Vettel and Raikkonen - and anyone else starting on the soft tyre - should be able to stay on that compound until around lap 32-36, before taking on the medium tyre to the finish.
"The stewards found that the driver failed to follow the instructions of the relevant officials for the safe and orderly conduct of the event and order a reprimand (non-driving) and a fine of 25,000 euros", said a statement.
It was the 10th time this year that Vettel had been quickest in FP3, but he has claimed only one pole position in his last 12 qualifying sessions.
In contrast, there was never any indication the pole-setter would be investigated for his near-miss with Sirotkin, which on first viewing, looked more likely to be his doing.
In the opening moments of Q2, as drivers struggled to post a "banker" lap before conditions deteriorated, there was a heart in the mouth moment when Sergey Sirotkin nearly collected a slow Lewis Hamilton who appeared not to have seen the Russian as he moved to the left off of the racing line.
Lewis Hamilton said this week his hunger for more Formula One glory will not stop at his fifth world championship.
"I've been overtaken before and I've overtaken before".
"I see how hard he works, he sees how hard I work".More news: 11 injured in USA bar shooting
"I still have a mission here and I still want to win". It's an "I'll be nice this time and he'll probably be nice in return down the track".
"If I was in his position I would be frustrated as well because rain [was] coming".
"Because I was coming so quickly, I didn't expect him to give me the room as we were both on out-laps", he continued.
"But he wasn't on a lap, so I don't know what his thinking was".
"You all know what my goal will be for this weekend, so it's going to be up to me and I need to perform at my best level to fight for the win". If the weather is like that it's not ideal.
"I was making sure I had the gap to the driver in front, but then all of a sudden I saw a auto coming out of Turn 11 at high speed so I was like 'oh my God is that someone on a flying lap?'"
Vettel said: "They shouldn't call us".
It could be argued that Vettel, Hamilton and Sirotkin were all at fault in some part on Saturday, but the way the FIA have handled both incidents is what's being discussed most.
"I don't think he needs that, and he can do it himself". Is it unfair Hamilton wasn't investigated?