George Russell has expressed relief after Mercedes identified and resolved the problems affecting his car’s power unit. The team worked to fix the glitches ahead of this weekend’s Hungarian Grand Prix. Russell called the situation ‘the toughest psychological’ battle he has faced, but is now optimistic that the issues are behind him. The British driver hopes the resolution will allow him to compete more strongly in the race. Mercedes have been working hard to ensure the engine performs reliably. The Hungarian Grand Prix is the next round of the Formula 1 season. Russell’s comments come as the team aims to improve its performance after a challenging start to the year. The exact nature of the engine glitches has not been disclosed, but the team is confident they have been fixed. Russell will be looking to build on his recent results and challenge for points in Hungary.