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Lewis Hamilton and George Russell have been warned the next two races are 'critical' for the team to salvage the season by Martin Brundle. The Sky Sports commentator claimed the Mercedes pair were in a 'difficult situation' as their lack of pace continues.

He thinks the team were reaching the point where they had to accept their new design just 'doesn't work'. Brundle added this could mean the team have to completely redesign their car which could stretch them under the new cost cap rules.

Speaking to Sky Sports, he said: "I don't know what the upgrades are exactly, though the area of the car they're working on is so complex... they're must be a huge amount of performance that is untapped there on the floor.

"I think we all need Mercedes to sort that problem out, because there must be a point coming soon where they have to accept that this car