Alex Marquez has called for improved safety measures at the Circuit of the Americas after a crash-strewn first day of track action on Friday at the United States GP. <br>The 29-year-old Spaniard's older brother Marc suffered a high-speed crash at Turn 10 in the morning session, escaping major injury but not pain. While that was the only fall of the morning session, afternoon Practice saw a spate ...<a class='more' href='https://www.motorsport.com/motogp/news/alex-marquez-wants-more-run-off-at-really-really-bumpy-cota/10808757/?utm_source=RSS&utm_medium=referral&utm_campaign=RSS-MOTOGP&utm_term=News&utm_content=www'>Keep reading</a>