I'm using the Open Sans web font from Google Web Fonts on my website. I only need the basic latin subset, but I do use the Psi (?) character quite often as well and I would like to use the Open Sans version of that character, without having to include the entire greek subset.

I looked at this help page which shows how to embed specific characters only using the text parameter, but there's no mention of including specific characters. I tried doing the following to try to combine both font requests into one, but it didn't end up working.

<link href='http://fonts.googleapis.com/css?family=Open+Sans:400,400italic,700&subset=latin' rel='stylesheet' type='text/css'>
<link href='http://fonts.googleapis.com/css?family=Open+Sans:400,400italic,700&text=%CE%A8' rel='stylesheet' type='text/css'>

Is there anyway to accomplish this?