By Pat Cash

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I don't think anyone really knows how Saturday's ladies' final between Serena and Venus Williams will go but if asked for a prediction, I'd go for Serena.

She hasn't won Wimbledon yet and the family are such that they like to share things!

It is hard to get excited about a Williams final as you don't know if it's rigged, they never look flat out with the burning desire to kill off their opponent.

Unfortunately it is usually a lacklustre affair and I will be very surprised if Saturday's match turns out to be a thriller.

The family probably think it's Serena's turn and that is probably what will happen.

It would be nice to see them produce a classic clash and it is tough on both as you don't have that passion to kill the other person.

The matches have reflected that.

They are great players but they just don't have that 'nail your opponent to the post' attitude when they face each other.

That is what we like to see in tennis - and any other sport.

Venus is a slightly better overall player for me, more athletic with the stronger forehand.

But there is so little in it and it will be down to who feels the sharper on the day.

I just have a gut feeling for Serena - but as I said at the start - no-one really knows what is going to happen.