Conversation so far:
Was Mark Henry still wrestling in 2015?
Mark Henry returned on the March 12, 2015 episode of SmackDown.
What was Mark Henry doing in 2015?
Mark Henry returned on the March 12, 2015 episode of SmackDown, confronting Roman Reigns for having a lack of identity and for not being respected, resulting in Reigns attacking Henry.
What happened after Roman Reigns attacked Mark Henry on the March 12, 2015 episode of SmackDown?
The attack caused Mark Henry to become a believer in Roman Reigns, and turning face in the process.
Did Mark Henry wrestle as partners with Roman Reigns in a match after the March 12, 2015 episode of SmackDown?

Question: Did Henry retire in 2017?
Self-contained rewrite: Did Mark Henry retire in 2017?