Possibly. In order to say for sure, there needs to be a more thorough discussion of the specific facts in your case. For example, what is your status now? How is it different than before you were hurt? Why did they not choose your for the promotion? Because of your age, sex, race, religion, or national origin? I suggest you discuss these facts with an attorney to see if there might be anything that would constitute discrimination in your case. Good Luck!
(licensed only in Mississippi; this answer does not create an attorney client relationship)