The two-time Asian Tour number one is returning from an enforced three-week break after having a cortisone jab into his right shoulder but Singh, who celebrated his 43rd birthday on Monday, admitted the treatment has failed to alleviate the pain.
"There's still pain, so I don't know whether the shot has worked or not. The doctor says it hasn't because you should have no pain after two weeks," said Singh.
"But I'm here and I'm going to enjoy this week."
Top Asian Tour stars including Prom Meesawat and Thaworn Wiratchant of Thailand, Filipino Angelo Que and India's Rashid Khan, all ranked in the top-10 of the Order of Merit, will tee up at the immaculate The Els Club Dubai in search of the inaugural Dubai Open trophy.
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Former British Open champion Darren Clarke of Northern Ireland and Englishman Tommy Fleetwood, who needs a lone 16th place or better finish in Dubai to qualify for the Masters Tournament in April, are also in the field.
With his family in Dubai, Singh hopes to celebrate the week of his birthday by returning into the winner's circle, with his last success being the 2012 Scottish Open.
"We are going to have a great week. I just want to enjoy the atmosphere, enjoy the game. Yes, I'm 21 now," he said laughing.
Fleetwood will be on a mission to break into the world's top-50 in what is the final counting event on the Official World Golf Ranking. Following a commendable fourth place finish in Thailand on Sunday, he rose to 52nd in the world and another good result in Dubai will see him tee up at Augusta National for the year's first Major.