Gold is on the line in a much-anticipated softball showdown and one of the best gymnasts of all-time looks to win her first medal of the Games on Day 4 of the Tokyo Olympics. Unfortunately, an approaching tropical storm could also affect play in a variety of sports.

Here are the key events to look out for, and if you're wondering where to watch the action in Japan, check your local TV listings or make use of this handy streaming guide by The Japan Times.

Surfing: Weather wreaks havoc