麻豆社

Ferrari will struggle to keep hold of four-time world champion Sebastian Vettel following the departure of technical director James Allison, according to the 麻豆社's Tom Clarkson.

Allison left Ferrari this week in what the team say was a "joint decision".

Clarkson believes this key departure means the Italian outfit will 鈥渞eally struggle鈥� to keep hold of the German beyond his current contract, which expires at the end of 2017.

He said: "He is probably looking at somewhere like McLaren for 2018. Instead of re-signing until 2020 - which was being mooted until quite recently - I can see him looking over his shoulder at what else is out there."

This clip is taken from 5 live sport on 28 July 2016.