Complex sentence: In 2000, as part of her Farewell Tour, Graf played a series of exhibition matches against former rivals in Japan, Spain, Germany, South Africa defeated her former rival Arantxa Sánchez Vicario in an exhibition match played in Zaragoza, Spain in 1999.
Split into simpler sentences: In 2000, as part of her Farewell Tour, Graf played a series of exhibition matches against former rivals in Japan, Spain, Germany and South Africa. She defeated her former rival Arantxa Sánchez Vicario in an exhibition match played in Zaragoza, Spain in 1999.