How to send additional teacher evaluation?

<p>I know that Stanford requires 2 teacher evaluations, and an optional letter of recommendation can also be used. Say that I want the optional letter to be from a coach, that means that I would have to fax that letter in for them. But If I also wanted the optional letter to be available for the other applications on Common App, would I have to ask my coach (who is a teacher, but I can't use him as a main letter of recommendation because I only have him for a sport) to first fax in his Stanford recommendation letter and then upload his to the Common App after I sent my Stanford application or could I just ask him to write a recommendation letter on the Common app, and then send the entire common application to Stanford and they will consider that recommendation as the optional one?</p>

<p>I called the admissions office with the same question. They said that the optional letter must be faxed and cannot be submitted via the common app.</p>