Verstappen won for Red Bull in Spain previous year, his first career victory, after Hamilton and now-retired team mate Nico Rosberg collided on the first lap and nobody is taking anything for granted now.
The Finn has proved himself as a potential contender for the championship battle on the back of a well-earned victory in the Russian Grand Prix.
"It took quite a while", Bottas said.
But the Mercedes driver said he was far more concerned about understanding why he was off the pace in Russian Federation. "Thanks so much to the team and the factory".
Raikkonen said he was "happier than the previous qualifyings", despite missing out by a whisker on what would have been his first pole for nine years.
"Valtteri is an outstanding driver and a very deserved victor". A well-earned win, the Finn was joined on the podium by Vettel and Räikkönen, with Lewis Hamilton finishing a distant and disappointed fourth.
And retired three-time title victor Lauda believes Bottas can now push on in search of further wins, having taken his first chequered flag in just his fourth race for Mercedes.
Spanish GP: Lewis Hamilton passes Sebastian Vettel to win at Barcelona
After being edged into second place during a contest that delighted the crowd in Catalonia, Vettel said: "I was pushing". Before he broke down, Bottas gave Hamilton some critical help by holding Vettel up through a thrilling lap-long duel.
Lewis Hamilton shrugged off a disappointing Russian Grand Prix qualifying on Saturday, with Ferrari sweeping the front row for the first time in almost nine years, as "just one of those weekends".
Bottas went for the pit-stop on Lap 28 giving the lead to Vettel, who lingered on the track a while longer going for his pit-stop about ten laps later.
After an aborted start, with Fernando Alonso's McLaren breaking down on the formation lap, Bottas seized the lead from third on the grid. Both cars were damaged in the accident at Turn Two and were out of the race with both drivers climbing out undamaged from the debris.
"I tried everything to catch Valtteri". But a little bit more happy about the safety vehicle race, actually. However, he was left fuming after his hopes of passing him on the last lap were dashed by having to lap the Williams of Felipe Massa.
"It doesn't matter, though".
"A big congratulations to Valtteri, he did an exceptional job all weekend - he was quickest. It is his day". Red Bull's Daniel Ricciardo also had to retire with engine trouble. Other drivers who did not finish the Russian GP were Renault's Jolyon Palmer and Haas' Roman Grosjean, who came together in the opening lap and crashed into the barriers.
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