Stanislas Wawrinka has announced that that he is no longer working with his coach, Dimitri Zavalioff. They had worked together since the start of Wawrinka’s career.
“I would like to thank Dimitri for all the work together. Thanks to him I have won the Roland Garros junior title, two ATP World Tour events (2006 Umag, 2010 Casablanca) and reached No. 9 in the (South African Airways) ATP Rankings in 2008. He played a major role in my career and I am extremely grateful,” said Wawrinka.

Interesting. I wonder how he'll do moving forward. Do you know if there's anyone in the works to replace Zavalioff?
There is still no official announcement who will be his new coach. On ATP World Tour website writes that he is yet to appoint a new coach.