Former Formula 1 driver Juan Pablo Montoya believes current championship leader Kimi Antonelli's biggest obstacle in the title race is his own mindset, urging the Mercedes garage to shield the teenager.<br>Antonelli still leads the drivers' championship heading into the Belgian Grand Prix, but his team-mate George Russell closed the gap to 25 points after finishing second at the British ...<a class='more' href='https://www.motorsport.com/f1/news/juan-pablo-montoya-says-kimi-antonelli-is-his-own-biggest-f1-title-rival/10839437/?utm_source=RSS&utm_medium=referral&utm_campaign=RSS-F1&utm_term=News&utm_content=www'>Keep reading</a>