No Follow posts_nav_link

I am trying to add the nofollow tag to my bottom nav section and a bit of a rookie to php here’s the original code.

<?php posts_nav_link(‘ • ‘,’Newer Entries’,’Older Entries’); ?>

And here’s what I have come up with but it doesn’t work, any ideas? Please note that I want both ‘Newer Entries’ and ‘Older Entries’ to both be no follow.

“><?php posts_nav(‘ • ‘,’Newer Entries’,’Older Entries’); ?>