In 2010, Rollins signed with WWE and was assigned to their developmental territory, Florida Championship Wrestling (FCW). He became the inaugural NXT Champion in 2012, highlighting his rapid ascent within the company. Later that year, he debuted on WWE's main roster as part of the faction known as The Shield, alongside Dean Ambrose and Roman Reigns. The trio made a significant impact, dominating the tag team division and engaging in high-profile storylines.