Tuesday's Formula 1 news roundup: Claire Williams, Nicholas Latifi, Toto Wolff

Sports Mole rounds up all of the latest news regarding Formula 1 on Tuesday, January 7.

Tuesday morning's headlines:

Jamie Chadwick to continue as Williams development driver in 2020 The W Series champion has been retained by the British team for another season. Read more.

Williams loses major sponsor Rexona Amid a deep performance crisis, Williams has lost yet another major sponsor. Read more.

Engineer switch helped Bottas in 2019 - Hamilton Lewis Hamilton says losing a key engineer to his teammate's side of the garage hurt his performance at the start of 2019. Read more.

Mercedes, not Ferrari, will be 2020 rival - Marko Dr Helmut Marko does not think Ferrari will get in the way of Red Bull's fight for the 2020 title against Mercedes. Read more.

Canada GP promoter defends Lance Stroll Canada GP promoter Francois Dumontier has defended Lance Stroll, as the young Canadian prepares for his second season with his billionaire father's F1 team. Read more.

Rossi admits he turned down Ferrari in 2006 Valentino Rossi says he came tantalisingly close to switching to Formula 1 in 2006. Read more.

Mercedes seat not worth 'risk' for Ocon - Wolff Signing up Esteban Ocon to be Lewis Hamilton's Mercedes teammate in 2020 was ruled out by Toto Wolff because of the "risk". Read more.