Martina Navratilova could not commit '100 per cent to the project ' The pair only started working together in December last year . Agnieszka Radwanska is struggling for consistency this season . The Pole slumped to an early defeat in Poland this week .
Martina Navratilova could not commit '100 per cent to the project ' The pair only started working together in December last year . Agnieszka Radwanska is struggling for consistency this season . The Pole slumped to an early defeat in Stuttgart this week .