The Championship leaders have been charged with seven breaches of regulations relating to third-party ownership and agents.
The charges relate to Argentinian midfielder Alejandro Faurlin, who signed for Rangers for a club-record fee believed to be in the region of ?3.5million in 2009
The Hoops could face a possible points deduction over the Football Association charges but after the 2-1 win over Crystal Place Warnock was calm.
He said: "I've spoken to our legal people about it, I am very happy with what they've told me, and I've told the players that.
"I've read some of the newspapers and would love to say what I think, but I won't be saying anything."
Source: PA
Source: PA