Former Wimbledon junior champion Agnieszka Radwanska has become the latest player to commit to playing at next month's DFS Classic.
The 19-year-old, ranked 15th in the world, claimed the first WTA Tour title of her career in Thailand earlier this year and reached her first Grand Slam quarter-final at the Australian Open
She is, perhaps, best known for winning girls' titles at the All England Club in 2005 and Roland Garros a year later, the same season she was awarded the WTA Tour Newcomer of the Year Award.
The Pole will be joined at Edgbaston Priory by Dinara Safina and the Bondarenko sisters.
Safina recently won her sixth and biggest tour singles title in Berlin when she defeated Justine Henin and Serena Williams en route. The 22-year-old is ranked 14th in the world and will be competing in Birmingham for the first time.
The Bondarenko sisters, Alona and Kateryna, have proved a formidable doubles pairing this year, claiming the Australian Open title and following up with a tour title in Paris.
Last year's champion, Jelena Jankovic, has already confirmed her presence as has Wimbledon runner-up Marion Bartoli.
* Tickets are available from the box office on 0871 945 3000.