Oscar Piastri led the Formula 1 world drivers' championship for six months, occupying the number one spot with victory in the Saudi Arabian Grand Prix in April.<br>But his campaign has begun to sputter in recent races, prompting all manner of speculation – that he can't handle the pressure, that there is something wrong with his car, or that he is being deliberately held back by a McLaren team ...<a class='more' href='https://www.autosport.com/f1/news/verstappen-would-bang-my-fist-on-the-table-if-he-were-piastri/10774037/?utm_source=RSS&utm_medium=referral&utm_campaign=RSS-ALL&utm_term=News&utm_content=uk'>Keep reading</a>