Hull City have confirmed Mason is in a "stable condition" after suffering the injury in a collision with Cahill - a coming together which resulted in an eight-minute stoppage during the first half.
Medical staff provided treatment on the pitch before sending the former Tottenham midfielder to St Mary’s Hospital in London, with Hull releasing a statement on Monday revealing Mason is now speaking after undergoing surgery.
The Chelsea trio have also visited Mason at the hospital, speaking with his family as the Hull star was receiving treatment from the Neurosurgery Unit following the game.
Antonio Conte has also wished the 25-year-old a speedy recovery on behalf of the Premier League leaders following the match, telling reporters: "First of all, everyone at Chelsea wants to wish [Mason] the best.
"It was a bad accident with Gary. After the first half, it wasn't really good with Gary, but we decided to continue with him."
And a statement from Hull on Monday has revealed that Mason will continue to be monitored by hospital staff in the coming days, with the family thanking the football world for the outpouring of support.
It read: "The Club can confirm that Ryan has been visited this morning at St Mary's Hospital by Club Captain Michael Dawson, Club Doctor Mark Waller, Head of Medical Rob Price and Club Secretary Matt Wild.
"Ryan has been speaking of the incident yesterday and will continue to be monitored at the hospital over the coming days where the Club will remain in close contact with Ryan, his family and the staff at St Mary's.
"Ryan and his family have also been extremely touched by the overwhelming support they have received and would very much like to thank all of those who have posted such positive comments both on social media and in the press over the last 24 hours."