Graeme McDowell has been scouring Singapore looking for a missing driver he hopes can lead to success in this week’s Barclays Singapore Open.

McDowell arrived in Singapore after finishing third in Shanghai behind Germany’s Martin Kaymer.

As is customary, the former U.S. Open champion heads the practice range with two drivers in his bag.

One of the drivers was a gleaming new protoype Cleveland Golf Classic driver that he found waiting for him on arrival at his Sentosa Shangrai-la hotel room.

“Nice surprise waiting in room here in Singapore. Hot off the production line. Prototype @Cleveland Golf Classic driver,” he wrote on Twitter.

“Old school persimmon lines with 21st century technology inside. It’s built on the ClevelandGolf 290 Launcher platform.

“Love deep face drivers. Cannot wait to hit this in practice”.

The only problem for McDowell is that while he was trying out a newer driver another competitor borrowed the older driver and the Portrushman doesn’t know who the player is.

Graeme McDowell on route to victory in Wednesday's Barclays Singapore Open Pro-Am. (Photo - Barclays Singapore Open)

“I usually always have two drivers in the bag when I’m on the range but in trying out a new driver on Tuesday someone else grabbed the other driver in my bag and I don’t know who that was,” said McDowell.

“I’ve had Kenny my caddy checking golf bags and asking around but it just hasn’t turned up.

“So if we can’t find it, I’ll just the newer driver into competition but I would rather have the old one even though you don’t use driver that many times on the two courses we’re playing on.”

Despite the disruption McDowell used the new driver to lead his Singapore Pro-Am team to success he’s decided to take his old driver into the $US 6m event.

He was accompanied by his Horizon Sports manager, Connor Ridge to the Pro-Am dinner where McDowell and his team received their rewards.

McDowell played alongside His Royal Highness Prince Abdul Majid Iskand, who is the brother of the Sultan of Johor.

Johor, located around an hour’s drive from Singapore in Malaysia, will next week play host to the Iskander Johor Open.

“I am coming here to Singapore with a little bit of confidence but then this is a golf course also where you have to control your ball flight,” said McDowell.

“And with these big undulating greens you need to putt well.”

Another concern will be the searing heat and humidity and the quintessential afternoon downpours.