Henman inspired by Agassi

Tim Henman plans to follow the example of the evergreen Andre Agassi by peaking in his early 30s.

Henman is still looking for his first singles victory of the season, having lost his opening matches in the two tournaments he has played since recovering from injury.

Henman takes on Jan-Michael Gambill in the first round of the Pacific Life Open later, a Masters Series event where Henman was a finalist a year ago.

But Gambill claimed a title last week at Delray Beach, so Henman will have his work cut out against the American.

Regardless of current results, Henman, 28, believes he can carry on playing at the highest level for another five years, despite being troubled by a shoulder injury for the past six months.

"I honestly feel that I've got so much more to achieve in the game, and I've still got a huge desire and passion to keep improving," he said.