Mercedes driver George Russell has claimed there is "no doubt" that Ferrari and Red Bull "pushed the regulations" during the first half of the Formula One season.

The British driver has seen Mercedes unable to compete with their rivals in the opening months of his stint with the team, having moved from Williams, but the German manufacturers hope for improvement when the season resumes this week.

A new technical directive has been put in place, starting on Sunday in Spa, aimed to crack down on porpoising – with Mercedes among those to have struggled with bouncing throughout the season.

Russell believes that the change could prove to be beneficial to Mercedes and the rest of the pack in the bid to close down on the front two teams, but warned there are no guarantees.

"Spa is going to be interesting. There's changes to some little regulations, which may bring other teams towards us," he told Sky Sports.

"There is no doubt that Ferrari and Red Bull have pushed the regulations in that regard, and we've respected it as the regulation was intended.

"There's no guarantees it will bring them closer to us. Every car is different, but it's not going to help them that's for sure."

Russell currently sits fourth in the driver standings, 100 points behind leader Max Verstappen, while Mercedes are third out of the constructors.