Kiefer announces retirement
PARIS – Germany’s Nicolas Kiefer, the former world number four currently ranked 722nd in the world, announced on Thursday that he is retiring from tennis at the age of 33 due to persistent injury problems.
“After a long period of reflection, I’ve decided to bring an end to my professional career,” said Kiefer on his official website.
He added that he wanted to spend time with his baby daughter Mabelle Emilienne, who was born on August 11.
Kiefer turned professional in