Manchester United legend Paul Scholes appeared to call Robbie Savage a "knobhead" during a live BT Sport broadcast on Tuesday evening.
Following Liverpool's 3-2 victory over Tottenham Hotspur at Anfield, Scholes joined presenters Savage and Darren Fletcher on the Fletch & Sav show.
The 40-year-old, who was accompanied by Phil Neville on the show, muttered the insult under his breath after Savage made a joke about his height.
Scholes joined BT Sport as a football pundit last summer.