Shohei Ohtani, the Japanese baseball sensation, underwent a procedure to drain fluid from his left knee on the 12th day. The exact cause of the fluid build-up or 'water knee' as it's commonly referred to, is yet undisclosed. The procedure is not expected to significantly affect Ohtani's play, with him due to return to the league soon after some rest and recovery.

In Japan, professional sports, especially baseball, has a significant social impact, and athletes like Ohtani are greatly admired and closely followed. Any news related to their health or performance usually ripples through the national media. Moreover, "water knee" injuries are quite familiar to the Japanese, as it is a common sports injury in the country.

Similar to Japan, athletes in the US or EU are immensely popular, their health often becoming a matter of public interest. Injuries to athletes, especially stars like Ohtani, can have effects on team morale, fan engagement, and even the sports betting industry. The details of the treatment and recovery are often shared transparently with the public.