Toto Wolff and Christian Horner were part of a dramatic title race between Lewis Hamilton and Max Verstappen in 2021
A return to Formula 1 will be difficult for former Red Bull team principal Christian Horner because he has "broken quite a lot of glass", says ex-Mercedes rival Toto Wolff.
Horner was sacked in July after 20 years in his role following declining form and internal disputes.
The 52-year-old had been accused of sexual harassment and coercive, controlling behaviour by a female employee.
Horner was twice cleared of the claims, firstly after an internal investigation conducted by a lawyer, then by another lawyer who dismissed the complainant's appeal.
