F1 icon: Piastri “not good enough to be world champion”  SENMcLaren offer Oscar Piastri ‘investment’ boost after recent struggles  racingnews365.com‘Not good enough’: How McLaren stripped Piastri of his title mojo  CODE Sports‘If he doesn’t get support…’: F1 icon’s theory on ‘struggling’ Piastri  fox sportsSteiner delivers blunt assessment of Piastri’s F1 title chances  Speedcafe.com