Conor McGregor posted a heartwarming Mother's Day tribute on Instagram highlighting fiancée Dee Devlin and his mother Margaret.

The former UFC featherweight and lightweight champion wrote: "Happy Mother’s Day to the best! Love you so much. ❤️"

Dee and Conor have three kids together in sons Conor Jr and Rían along with daughter Croia.

McGregor and his family have traveled extensively, where they have been in the United States for the past month whilst he filmed The Ultimate Fighter.

The 34-year-old trained against a future opponent, Michael Chandler, on the most recent season of the MMA reality show, which was filmed in Las Vegas.

McGregor is expected to make a return to the UFC octagon this autumn following a two year lay off due to a broken leg sustained at UFC 264 against Dustin Poirier.

However, they decided to move to a less extravagant location to celebrate the festivities on St. Patrick's Day in Savannah, Georgia.

McGregor spent the day there as the fire and police departments invited him as a token of appreciation.

The Dubliner gave the charitable foundation "Tunnel To Towers," which aids firefighters and police officers with things like medical care, more than €3.5 million.

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