The principal said that Mr. Jones, one of our teachers will be on vacation for a week.

What is the best way to rewrite the bold phrase in the sentence above?

None of the phrases are bolded, so I'm going to rewrite the whole sentence.

The principal said that Mr. Jones, one of our teachers, will be on vacation for a week.

In order to make the sentence grammatically correct, a comma was placed between the words "teachers" and "will".