Sergio Perez has now revealed the one thing that Oliver Bearman made the Red Bull driver ‘realise’ about Ferrari with his shock Formula 1 debut in the Saudi Arabian GP. The Scuderia had to hastily usher Bearman into the SF-24 in Jeddah this March when Carlos Sainz was diagnosed with appendicitis. Sainz initially fought through the pain to take part in practice for the Saudi Arabian GP. But Ferrari had to turn to their reserve driver before FP3. Bearman was only in Jeddah to continue his Formula 2 campaign for Prema and earned pole position for the Feature race. Yet the 19-year-old had to aband…