Cruz beat Scott Jorgensen for the inaugural UFC bantamweight title in 2010, defending the belt twice earlier than having to vacate by means of harm.
He regained the title from TJ Dillashaw in 2016 and made yet one more defence in opposition to Urijah Faber earlier than defeat by Cody Garbrandt.
Cruz, who additionally works as a part of the UFC broadcast workforce, leaves the game having gained 24 of his 28 fights.
“The UFC broke limitations to set the stage not only for us as fighters. Additionally for each MMA sports activities organisation that adopted them throughout the bridge created all through politics as a way to enable our sport to happen in the US and now the world,” added Cruz.
“I’m extremely grateful to everybody who booked tickets, resorts, and flights to help me. Thanks all for being there by means of each second, each victory, and each problem.
“You’ve got made this journey unforgettable. Thanks for the love and help. I’ll carry it with me all the time. With love, Dominick.”