Day 3 of the Rio Olympics will feature the first gymnastic medals and two historic firsts. Here's the big stuff you should keep an eye out for on Monday, Aug. 8 (all times ET).

All events are live-streamed at NBCOlympics.com. Find out all the ways to watch the Olympics here.

Rio Olympics: Stars to watch

Gymnastics, men's team final
When:
3:00 p.m.
China won the last two golds, but Japan is the reigning world champ. This might finally be Japan's time to move up one step on the podium, behind their six-time world and defending Olympic champion Kohei Uchimura. China is the top qualifier, followed by the United States, Russia and Japan. The U.S. men, who finished fifth in 2012 after being the top qualifier, have an outside shot a medal.

Sam Mikulak, U.S. men's gymnastics Olympic teamSam Mikulak, U.S. men's gymnastics Olympic team

Rugby, women's sevens
When:
6:00 p.m.
The first-ever gold medal in rugby sevens, which is making its Olympic debut, will be handed out in sevens. The bronze medal match is at 5:30 p.m.

Fencing, women's individual sabre
When:
8:00 a.m.
Ibtihaj Muhammad, the first U.S. Olympian to compete while wearing a hajib, will take to the piste in her Olympic debut. The medal bouts start at 4:15 p.m.

Other medal rounds:
- Shooting, men's 10-meter air rifle (11:00 a.m.)
- Shooting, men's trap (bronze medal match at 2:30 p.m.; gold medal match at 2:45 p.m.)
- Weightlifting, women's 58 kilogram (2:30 p.m.)
- Diving, men's synchronized 10-meter platform (3:00 p.m.)
- Judo, women's 57 kilogram (bronze medal bouts at 3:26 p.m.; gold medal bout at 3:40 p.m.)
- Judo, men's 73 kilogram (bronze medal bouts at 3:47 p.m.; gold medal bout at 4:01 p.m.)
- Weightlifting, men's 62 kilogram (6:00 p.m.)
- Swimming, men's 200-meter freestyle (9:21 p.m.)
- Swimming, women's 100-meter backstroke (9:30 p.m.)
- Swimming, men's 100-meter backstroke (9:38 p.m.)
- Swimming, women's 100-meter breaststroke (9:54 p.m.)