It's been quite a hectic few days for Conor McGregor: on Saturday in Las Vegas he won his high-profile UFC fight at the MGM Grand hotel.

But the celebrations continued long after the weekend, as Conor celebrated his 27th birthday yesterday.

His long-term girlfriend, Dee Devlin, took to Instagram to wish him a very happy birthday, sharing a photo of the two kissing in a pool in Nevada. 

The couple have been together for five years and Dee shared this picture with the caption "Biggest happy birthday to the most amazing person on the planet! I am so proud of you babe you are my everything xxx"

 

Biggest happy birthday to the most amazing person on the planet! I am so proud of you babe you are my everything xxx

A photo posted by Dee Devlin (@deedevlin1) on

This post comes two days after Dee shared further congratulations for her beau with a lengthily post to say how proud she is and to thank all of the fans at home and the ones that travelled for the fight. 

"To say that I am proud is a MAJOR understatement! I am so on cloud 9 right now I can't even put it into words!

"Thank you to every single person who made the trip out to Vegas to support Conor last night! The place was absolutely buzzin! And to all of the fans at home who also had a big part to play in making this event so special.

"Hours upon hours, years upon years of hard work and complete dedication to his craft accumulated last night. I am so grateful right now it's overwhelming. We did it babe!! I love you more than anything Xxxxxx"