Martina Navratilova and Agnieskza Radwanska have agreed to end their part-time coaching relationship after working together for five months. Radwanska will continue to work with her long-time coach Tomasz Witkorowski.
No. 9 Radwanska announced she would be working with the 18-time major champion in December. "I just wanted to thank Martina for her time and efforts over these last few months," Radwanska said in a statement. "It was a great experience to work with one of the all time greats. However we both agreed that as Martina could not commit 100 percent to the project then it was not going to work as a long term partnership. We will stay friends and I wish her all the best in her personal and professional life."
"I am stepping down as Agnieszka's part-time coach," Navratilova said in a statement. "I think I underestimated the time it would take to make this a proper and good situation for both Agnieszka and me."
Radwanska's hiring of Navratilova was one of a series of high profile former-players entering the coaching fray during the off-season. Four months into the partnership it was also the least successful. Radwanska has struggled this season, slipping from No. 6 to No. 9. She has just two wins over Top 20 opposition and is 13-11 on the season. At this week's Porsche Tennis Grand Prix in Stuttgart, Germany, she lost in the first round 7-6, 6-4 to No. 15 Sara Errani.