Yuvraj, at present, is not a part of the Indian cricket team. But he hasn't yet given up hope of playing for India despite being ignored repeatedly.
In an interview with The Telegraph, the stylish left-handed batsman from Punjab recently said, "I am still motivated. I got a career-best 260 just weeks ago. I'm not through with the game."
The cricketer was part of the Indian side during World T20 2016 and played his last international game against Australi at Mohali, during the ICC tournament.
Cricketing fraternity took to Twitter to congratulate Yuvraj on his birthday.
Here's who said what:
This is how India's cricketing legend Sachin Tendulkar greeted Yuvraj.
This is how Gautam Gambhir greeted newly-wedded Yuvraj Singh.
This is how Harbhajan Singh greeted Yuvi.
This is what Ex-England cricketer Simon Jones had to say.
This is how India's head coach Anil Kumble greeted Yuvi.
This is how former team mate Mohammad Kaif greeted Yuvraj.
This is how Hardik Pandya greeted Yuvraj Singh.
This is how BCCI greeted Yuvi.
This is how Sri Lankan batting legend Sanath Jayasuriya greeted Yuvraj.