Berger urges Bottas to find his form again
"Hamilton is feeling the pressure from Verstappen and really pushing," he said. "That's why we're seeing probably the best Hamilton of all time.
"It's normal that even very good racing drivers like Bottas then have a problem."
F1 legend Gerhard Berger thinks that could be decisive for the world championship.
"The teammates are very important," said the former Formula 1 driver and current DTM series boss.
"That's why Perez's win at Baku was such a good result for Red Bull - because it strengthens Perez and builds his self-confidence.
"Even before Verstappen's retirement, Perez was a great help to Max. That's exactly what Red Bull needs.
"I don't know what is happening with Bottas, but he has to find his form again.
"Because one thing is clear - the battle between Hamilton and Verstappen will come to a head and Perez and Bottas will play an important role in that," Berger added.
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