These aren´t for 2003, but still came true:
Venus Williams in ´98: " My biggest rival will be my little sister." Don´t look now, but serena is the person was beaten the most times at a GS.
Venus williams in´98:"Our goal is to be ranked no.1 and no.2. In the long run I can´t imagine someone being better than us who could stop us from doing that." They ended up being no.1 and no.2 for nearly NINE months. Not bad.
Richard Williams: " Venus has much pride and thus will become no.1 first, but Serena will end up being the better of the two. She´s meaner." Serena has won all four slams, beating Venus in 5 finals, had a much much longer run at the no.1 rank.