BRUSSELS Former world number one Justine Henin is poised to announce her comeback to professional tennis 16 months after she retired, Belgian media reported on Tuesday.

Henin, 27, will make the announcement on the evening news shows of French-language stations RTBF and RTL in Belgium, a number of newspapers reported.

The Belgian, who retired in May 2008 at the age of 25 saying she no longer had any passion for the game, had been scheduled to play exhibitions in Dubai and Belgium in November and December.

Speculation has grown that Henin was considering a competitive comeback with Belgian media reporting she had increased her training and recently ordered 14 tennis rackets.

Henin herself has also softened her stance about a return from a repeatedly firm 'no'.

The seven-time Grand Slam winner has also witnessed the return of compatriot Kim Clijsters, who won the US Open a week ago after just a month back on the professional circuit.

Henin, who won 41 titles after turning professional in 1999, was credited with owning the best backhand in the sport and also bucked a trend towards a power game by taller and stronger women with her slight 1.67 metre frame.

She won the French Open four times, the US Open twice, the Australian Open once and an Olympic gold in 2004, but failed to win Wimbledon. —REUTERS