Conversation so far:
What did Steffi play?
CANNOTANSWER.
what was her play style?
The main weapons in Graf's game were her powerful inside-out forehand drive (which earned her the moniker Fraulein Forehand) and her intricate footwork.
what else represented her play style?
Graf's technique on the forehand was unique and instantly recognizable.
why did she use this style?
As a result, she hit her forehand with exceptional pace and accuracy.
did she break any records?
Graf remains the only player, male or female, to have won the calendar-year Grand Slam.
what year did she win the Grand Slam?
1990s.
Did she win any other tournaments?
she won 26 regular tour events, including a record eight titles at the German Open.

Question: anything else?
Self-contained rewrite: anything else about Steffi other than grand slam 1990?