Ferrari will celebrate its 1,000th grand prix at their home track in Mugello after Formula One extended this season's calendar to 10 races.

The sport will head to the Ferrari-owned track, 25 miles away from Florence, for the first time, with a race at the Sochi Autodrom in Russia also confirmed by the sport's bosses on Friday.

The Mugello race will be the third instalment of another triple-header, following grands prix in Spa and Monza, and is set to take place on 13 September.

The round in Russia has been penned in for 27 September. It is understood that fans could be permitted to both events.

F1's owners Liberty Media remain hopeful of staging at least 15 races this year, and possibly as many as 18.

A race in Portimao in the Algarve is also set to be rubber-stamped in the coming weeks. And while it is yet to be confirmed, the season is expected to end with three consecutive races in the Middle East, with Bahrain to host two rounds before the season closer in Abu Dhabi on 13 December.

"We are delighted to announce Mugello and Sochi will be part of the 2020 calendar and want to thank all our partners for their support in recent weeks," said F1 chairman Chase Carey.

"We had great start to our season in Austria last weekend and we are increasingly confident in our plans to race throughout the remainder of 2020.

"The Russian Grand Prix is a major moment in our season, and we are looking forward to being back in Sochi in September.

"We are equally excited to see a Formula One race for the first time at Mugello, an occasion that will mark Ferrari's 1000th Grand Prix.

"Both races will be a huge boost for fans, with more announcements on the next races in our calendar coming in the weeks ahead."

Russia will allow spectators to attend the grand prix in Sochi, race organisers later announced Friday.

"This will be an incredible festival for the widest audience possible," said Alexey Titov, chief executive of promoter ROSGONKI.

"The event attendance remains at a good level year on year, and we are confident that the difficulties of this year will not become a special obstacle for motorsport fans.

"We are meticulously preparing to receive spectators safely and looking forward to seeing everyone in the Olympic Park."

Tickets for the race went back on sale after confirmation of the date on Friday.

Russia's death toll from the novel coronavirus edged past 11,000 on Friday, with the country reporting 174 new deaths in the past 24 hours.

The nationwide tally of infections stands at 713,936, the world's fourth highest case load.

Formula One started the season under strict health and safety conditions with teams distanced from each other in 'bubbles' within the paddock.

No spectators, sponsors or VIP guests have been allowed to attend but Formula One has said it hoped that might change later in the year.