Steffi Graf Amelia Island final on clay, Graf lost her first match of the year to Sabatini but returned to European clay with easy victories at Hamburg and Berlin. Graf's Grand Slam tournament winning streak ended at the French Open, where 17-year-old Spaniard Arantxa Sánchez Vicario beat Graf in three sets. Graf served for the match at 5–3 in the third set but lost the game and won only three more points in the match. Suffering from food poisoning, she had struggled to beat Monica Seles in their semifinal 6–3, 3–6, 6–3 and said that she had had menstrual cramps in the
Steffi Graf Wilson Pro Staff 7.0 lite, then switched to the Pro Staff 7.5 in 1996 and to the Pro Staff 7.1 in 1998. Graf's racquets were strung at 29 kilograms (64 pounds), significantly above the 50-60 pound range recommended by Wilson. In 2006, she signed an endorsement deal with Head. In 2010, Graf and Agassi collaborated with Head and developed the new line of Star Series tennis racquets. Graf has signed many endorsement deals throughout the years including a ten-year endorsement deal with car manufacturer Opel in 1985, and Rexona from 1994 to 1998. Other companies she has endorsed include Barilla,