sentences:  The court cost $1.63 million to make and took 19 days to prepare.At the time, Federer had won 48 straight matches on grass courts, going 5 straight years undefeated on grass, while Nadal had 72 straight wins on clay, going 3 straight years undefeated on clay.Before the match, Federer said, We are both looking forward to this absolutely new event.