TNA has announced that they are holding a fan-voted tournament to determine which former TNA Gut Check participant will be able to appear on iMPACT! Wrestling as part of a Gut Check segment. You can vote once per bracket (there are sixteen brackets), with voting ending on March 11th. The voting page, which is linked above, includes over 300 names with links to information and videos of each competitor.
Among the competitors are WWE Tough Enough alumnus A.J. Kirsch (aka Aaron Kirsch), Chase Stevens, Tommaso Ciampa, Bobby Fish, Chasyn Rance, Lince Dorado, Dimitrios Papadoniou (Papadon), Sami Johnston (Sami Callihan) and Arda Ocal of The Score.