1. Serena Williams

Username: SerenaUnmatched
Olympic sport: Tennis
2. Gabby Douglas

Username: gabbydoug
Olympic sport: Gymnastics
3. Simone Biles

Username: simonebiles
Olympic sport: Gymnastics
4. Sam Mikulak

Username: samuelmikulak
Olympic sport: Gymnastics
5. Carmelo Anthony

Username: carmelokanthony
Olympic sport: Basketball
6. Harrison Barnes

Username: hbarnes40
Olympic sport: Basketball
7. DeMarcus Cousins

Username: boogiecousins
Olympic sport: Basketball
8. Jimmy Butler

Username: Jumpman23
Olympic sport: Basketball
9. Kevin Durant

Username: kd35official
Olympic sport: Basketball
10. Draymond Green

Username: money23green
Olympic sport: Basketball
11. Kyrie Irving

Username: uncledrewsnap
Olympic sport: Basketball
12. Ryan Lochte

Username: RyanLochte
Olympic sport: Swimming
13. Sam Dorman

Username: Stormind
Olympic sport: Diving
14. Kassidy Cook

Username: kassidycook
Olympic sport: Diving
15. Kerri Walsh Jennings

Username: KerriLeeWalsh9
Olympic sport: Volleyball
16. Lauren Fendrick

Username: LaurenFendrick
Olympic sport: Volleyball
17. April Ross

Username: AprilRossBeach
Olympic sport: Volleyball
18. Breanna Stewart

Username: bre_stewart30
Olympic sport: Basketball
19. Mikaela Mayer

Username: mikaela.mayer
Olympic sport: Boxing
20. Greg Billington

Username: grillington
Olympic sport: Triathlon
21. Katie Bam

Username: ktod16
Olympic sport: Field Hockey
22. Stefanie Fee

Username: stefee2
Olympic sport: Field Hockey
23. Michelle Kasold

Username: mkasold18
Olympic sport: Field Hockey
24. Kelsey Kolojejchick

Username: kelseykolo
Olympic sport: Field Hockey
25. Julia Reinprecht

Username: jreinpre
Olympic sport: Field Hockey
26. Katie Reinprecht

Username: KReinpre
Olympic sport: Field Hockey
27. Kathleen Sharkey

Username: ksharkey
Olympic sport: Field Hockey
28. Caitlin Van Sickle

Username: poppycvs
Olympic sport: Field Hockey
29. Michelle Vitesse

Username: mlv3d
Olympic sport: Field Hockey
30. Jake Kaminski

Username: jake-kaminski
Olympic sport: Archery
31. Jill Witmer

Username: jillwitmerfh
Olympic sport: Field Hockey
32. Melissa Gonzalez

Username: mgonz05
Olympic sport: Field Hockey
33. Rickie Fowler

Username: RickieFowler15
Olympic sport: Golf
34. Bubba Watson

Username: thebubbawatson
Olympic sport: Golf

The Opening Ceremony begins Friday, August 5th, at 730/630C on NBC. Click here for more Olympics content!