Formula One announces venues for Sprint events

Formula One has announced the six venues that will host Sprint events next season.

Austria and Brazil are due to stage their third weekends in the format, with Austin and Qatar returning for a second year, and China and Miami joining the line-up for the first time.

Changes are likely to see sprint qualifying revert to Friday, with the 100-kilometre race then held the next day and followed by a qualifying session for the main Sunday Grand Prix.