First, veteran Kimiko Data Krumm, now it's Thomas Muster.
The former world no.1, Muster, will be making a comeback to the ATP circuit at the age of 42. He last played 11 years ago.
Muster won the 1995 French Open. He has accepted a wild card into the ATP challenger in Braunschweig, Germany. The Nord/LB Open starts on June 28.
The Austrian won 44 tour titles in his career.
“[I] still loves competitive tennis," Muster said. "I won’t set my goals too high but will just play my best tennis and we’ll see where it brings me.”
He plans to play in more second-tier circuit in his comeback.