Terry criticised Christensen for his part in Villa's equaliser in the 1-1 draw on Monday evening.
After the match Terry posted a video on Instagram saying that it was great to be back at Stamford Bridge and lauded "another great performance" from Villa.
Terry received a response to his post which said: "You'd have been raging at that equaliser John. The sporting side of this game has disappeared."
The Aston Villa assistant manager provided a simple response to the comment as he said: "He (Christensen) should have got up".