Romain Grosjean expects Haas' closest competitors will change dramatically next season as a shift in the pecking order takes hold of the grid.
Haas spent 2017 battling McLaren, Toro Rosso and Renault over the final few points on offer at each race to eventually finish eighth in the standings, 17 points ahead of McLaren and just six behind STR, with Renault a further four ahead.
However with Renault investing heavily in its works team and McLaren switching engine supplier, Grosjean expects those two teams to become out of reach as they jump ahead of the midfield, pushing Force India and Williams down and into the reach of Haas.
"McLaren is going to be super strong next year and they have huge resources, probably the biggest factory in Formula 1," the Frenchman is quoted as saying by GPUpdate.
"McLaren I believe is going to be there with Red Bull, then it's going to be Renault.
"The Renault engine is a decent engine, they've had reliability issues but power-wise they're up there, Renault is a on a high, they've been developing pretty well and are in front of us already."
When asked who would make up the midfield in 2018, Grosjean replied: "The [answer to that] question is Force India, Williams, ourselves and Toro Rosso with their new power unit."
