In response to the original posts, I assume that they will not rise or fall.
Tennis fans will watch the final regardless of who's in it, it's just everyone else that matters. If the bulk of the ratings come from the US, then I could see a little bit of a drop because there aren't any Americans in it. In Belgium, it'll go up, but not enough to compensate.
I don't think the Williams/Williams combination will have anything to do with ratings though - it's the Americans that people here will be missing most.
Lindsay Davenport - Anna Smashnova - Lisa Raymond - Sandrine Testud - Paola Suarez - Amelie Mauresmo - Virginia Ruano-Pascual - Nadia Petrova - Chanda Rubin - Cara Black - Tathiana Garbin - Anne Kremer - Monica Seles - Fabiola Zuluaga - Maria Sanchez-Lorenzo - Amanda Coetzer - Rita Grande - Meghann Shaughnessy - Magui Serna - Nathalie Dechy - Kim Clijsters - Elena Tatarkova - Maria Sharapova - Alicia Molik - Julia Vakulenko - Elena Likhovtseva - Anastasia Myskina - Emilie Loit