Even though it was basically a squash, at WrestleWar 89 he defeated The Iron Sheik by submission, something very few wrestlers have ever done.
After years of speculation and anticipation, Sting finally appeared in a WWE ring for the first time at the conclusion of Survivor Series 2014, knocking out crooked referee Scott Armstrong and delivering a Scorpion Deathdrop to Triple H, thus allowing Team Cena (by way of sole survivor Dolph Ziggler) to win the match and defeat the Authority.
And after Seth Rollins got The Authority rehired and Cena's teammates fired via Xanatos Gambit, Sting finally came to Raw to help Cena win a Handicap Match to get said teammates rehired.
On the February 9, 2015 edition of Raw,Triple H called out Sting, saying that he wanted to face Sting at Fast Lane. When Trips was done, the lights turned off, and after teasing the audience a little (including a fake Sting to scare Trips!), he sent out one sentence; "Triple H,I accept." Cue the entire arena going bezerk.