Sir Alex Ferguson mouths "he's gone" about Louis van Gaal?

Sir Alex Ferguson has been accused of mouthing "he's gone" in reference to Manchester United manager Louis van Gaal in a clip that has gone viral on social media.

The legendary manager was caught on camera chatting to a friend in the final throes of United's 1-0 loss to Southampton at Old Trafford.

Twitter users have claimed that Ferguson said "he's gone", although others have insisted that the Scot is merely saying "I don't know".

Watch the incident below:

Alex Ferguson appears to mouth "he's Gone" as the end nears for Louis Van Gaal Is it time for #LVG to go? pic.twitter.com/euokWaUZBX

— Bookie Bashers (@BookieBashers) January 23, 2016