Graeme McDowell believes hydration will be key as he prepares for the Maybank Malaysia Open this weekend.

The Northern Irishman makes his return to the tournament for the first time since 2008 and expects conditions to be as hot and humid as last year's Asia Cup.

"It was a very hot experience and you become experienced in these types of conditions, obviously hydration being key, pacing yourself and maintaining energy," he said.

McDowell also spoke about the challenges facing him on the course and how his start to 2015 is panning out: