After a string of losses at the start of 2018, Novak Djokovic has decided to part ways with his coach Radek Stepanek, just days after his split with Andre Agassi.

It's no secret that the 12-time Grand Slam champion Djokovic is undergoing one of his poorest runs on the courts since he ascended to the top of the male rankings, and the Serb obviously believes a change of coaching is necessary to get his career back on track.

And he has taken the drastic step to part company with both Agassi and Stepanek. Eight-time Grand Slam champion Agassi stated earlier this week that he often 'agreed to disagree' with Djokovic which led to the breakdown.

Achieving a career-high ranking of 8th in the world in 2006, Czech national Stepanek retired from the game in November 2017 aged 38, immediately pairing up with Djokovic in a coaching capacity.

That role has only lasted four months though, but Stepanek and Agassi haven't been the only ones to feel the wrath of 'Nole' in the past 18 months.

After a disappointing start to 2017, he decided to split from his long-time coach Marian Vajda, as he went solo for a month until he appointed Agassi to be his coach.

In a statement published on Djokovic's official website, it reads: "After Miami Novak Djokovic and his tennis coach Radek Stepanek decided to end their cooperation."

"The private relationship with Stepanek was and will remain great, and Novak has enjoyed working with him and learning from him.

"He remains grateful and appreciative of all the support he has received from Radek during the last period.

"Novak remains focused and eager to come back stronger and more resilient from long injury break that has affected his confidence and game.

"He is continuously and passionately looking for new and different ways to regain winning form.

"Djokovic will upon his short holiday with a family start his preparations for the clay season and upcoming tournaments.

"The cooperation between Novak and Andre Agassi has also ended."

Interesting that just one line of the statement was dedicated to Agassi.

Reading between the lines, the non-existent tribute to Agassi would appear to all-but confirm their strained relationship amidst a turbulent period of the Serb's career.

The 30-year old has struggled for form since the start of 2017, and injuries have continued to haunt him.

He exited the Australian Open in the second round, was eliminated from the French Open and Wimbledon at the quarter-final stage, and an elbow injury sustained at the latter tournament ruled him out of the US Open, and until the following January.

This year hasn't fared much better for Djokovic. Bowing out of the Australian Open to Chung Hyeon in Round 4, before undergoing more surgery on his troublesome elbow.

Losses to Taro Daniel and Benoit Paire at Indian Wells and Miami have forced the Serb to take drastic measures, and that meant cutting two experienced heads from his coaching staff.