Retired Russian tennis player Dmitry Tursunov has been coaching Anett Kontaveit since August 2021. With Tursunov as her coach, Kontaveit won two tournaments of the last three tournament she has played in – Cleveland Championships and the Ostrava Open.

Speaking of the coaching relationship, Kontaveit said:

I was looking for a coach and I suppose he was looking for a job, so that’s how it happened.

Though Kontaveit is immensely talented, she has yet to break through at a grand slam. Her best grand slam result came at the 2020 Australian Open where she reached the quarterfinals.

Tursunov is a former world number 20. He retired in 2017 after a string of injuries. After retirement, he has coached  Elena Vesnina and Aryna Sabalenka.

Argentine tennis player Leonardo Mayer announced his retirement from professional tennis at age 34. Mayer turned pro in 2003 and was a staple in the Top 100 for several years.

He won two singles titles in his career and reached a peak ranking of world number 21. He helped Argentina win the Davis Cup in 2016.

Fellow Argentine Juan Martin del Potro congratulated Mayer on his retirement and wished him well. 

Leo, congratulations on your enormous career, a pleasure for me to have grown up together. I wish you the best in your new stage and thank you forever for Davis! I love you friend!!!

– Juan Martin del Potro

His best grand slam singles result was reaching the fourth round at the French Open and Wimbledon. He won one doubles title in his career. His best doubles grand slam result was reaching the semifinals at the Australian Open in 2019.