Former F1 driver David Coulthard believes Valtteri Bottas needs to pull out all the stops and 'work hard' to challenge team mate Lewis Hamilton.
After a few rounds of observation and getting acquainted with his new environment earlier this year at Mercedes, Bottas came on strong and won in Russia and then again in Austria.
Unfortunately, the end of the summer was marked by a dip in performance as the Finn struggled to extract the most of his Mercedes, while Hamilton collected four wins in five races.
"I experienced the same sort of difficult times when I was at McLaren with Mika (Hakkinen)," Coulthard Finland's Ilta Sanomat newspaper.
"Valtteri just needs to work hard, find out where the gap to Lewis is and believe that he will be able to close it," the Scot added.
"Valtteri is a quick and talented driver," Coulthard continued.
"As a person he is quiet and reserved, but he needs to think about his races and everything that brought him to this point and believe in himself.
"At the same time we also have to realise that he has one of the fastest ever drivers as his teammate."
Gallery: The beautiful wives and girlfriends of F1 drivers
Keep up to date with all the F1 news via Facebook and Twitter
Max Verstappen’s bid to conquer the Nürburgring 24 Hours has ended in a cloud of…
Jenson Button has offered a stark, unusually candid reflection on what really sits beneath the…
For most young racing drivers, a call-up to Ferrari would feel like a dream. For…
With less than five hours remaining in the grueling Nürburgring 24 Hours, Max Verstappen has…
The Spanish Grand Prix’s future home is still surrounded by construction barriers, deadlines and heavy…
Helmut Marko has revealed that Max Verstappen’s in-season promotion from Toro Rosso to Red Bull…