#1 Roman Reigns (Captain)

Roman Reigns is the most obvious choice to captain the SmackDown men's team at Survivor Series. A few years ago, he was one of the most hated wrestlers in the world, but he has turned the tables around and is in an ideal position on SmackDown. Fans are now solidly behind him and continue to cheer him on at every show.
At Crown Jewel 2019, he secured the victory for Team Hogan in a five on five tag team match. Since then, fans have been speculating about what's next for Reigns on SmackDown. He's been in a feud with King Corbin, and it looks like this feud will continue for the next few months. Last week on SmackDown, he lost to King Corbin due to interference from Dolph Ziggler and Robert Roode.
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To extend the feud, they can place both wrestlers on Team SmackDown. There is also the possibility of dissension between Reigns and Corbin that could cost the match for SmackDown. He has all the credibility in the world, and therefore, WWE should hand him the captaincy.