Serena Williams' childhood coach Rick Macci still believes in Naomi Osaka but highlights to the former world No. 1 that she must find the right guidance and fix some technical stuff in her game.

Naomi Osaka’s tennis career has been, quite frankly, a rollercoaster. Not just any rollercoaster, but one of those heart-in-your-throat drops-with-a-couple-of-loops type of rides.

Japan's Naomi Osaka, a four-time Grand Slam singles champion, will work with Polish coach Tomasz Wiktorowski on a trial basis after splitting with Patrick Mouratoglou after less than a year together.

Naomi Osaka is going through tough waters, and fans are thinking she's done. The 27-year-old faced another premature exit at the ongoing Citi DC Open in Washington.

Tennis coach Rick Macci has highlighted what Naomi Osaka needs to do to return to her very best. Former world number one Osaka has had a tough time ever since returning to court after taking a long break to deal with pregnancy.

During the video essay, Mouratoglou highlighted the changing profile of players in terms of height and body composition, while pinpointing Carlos Alcaraz as an ‘exception.’ Mouratoglou said: “Clearly there is a change in terms of body type of the tennis player for the last years.