"But if it doesn't work then the FA will have to say no, it isn't working," he told BBC Radio 5 Live's Sportsweek programme.
Chelsea players surrounded referee Riley appearing to bully him out of red carding Ashley Cole following a late tackle on Alan Hutton during Wednesday's 4-4 draw with Tottenham.
Cole has been widely condemned for his behaviour towards Riley to whom he refused to acknowledge or even look at as the referee attempted to yellow card him.
But Terry has defended the behaviour of the Chelsea players following the incident.
"It is a natural reaction," he said.
"The fans show their frustration and the players do the same because they are passionate about the game.
"I do agree there has to be a line drawn and confronting the referee has to be taken out of the game."
The behaviour of footballers and the standard of tackling has come under intense scrutiny in recent weeks but Terry does not believe the game has changed or that challenges or attitudes are getting worse.
These tackles have gone on for years and have never been spoken of before
John Terry
"I personally don't think it has got out of hand and I don't think it is any worse than it used to be," he said.
"It is just being publicised and spoken about a bit more at the moment.
"These tackles have gone on for years and have never been spoken of before.
"Usually it was just a yellow card and everyone would get on with it. Now it is spoken about on television and publicised in the papers and ex-referees are given their views and the game has moved on a lot."
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