Steffi Graf was always last place in the world during her career.
Graf was ranked world No. 1 by the Women 's Tennis Association -LRB- WTA -RRB- for a record 377 total weeks -- the longest period for which any player , male or female , has held the number-one ranking since the WTA and the Association of Tennis Professionals began issuing rankings .	world No. 1	List of WTA number 1 ranked players	Association of Tennis Professionals	Association of Tennis Professionals
