Clijsters will struggle to be fit in time for Roland Garros
Kim Clijsters' participation in the French Open is in serious doubt after she injured her ankle at a wedding.
The Australian Open champion was on a break with shoulder and wrist problems when she severely strained medial and lateral ligaments in her right ankle.
She also tore the capsule of the ankle joint, and sustained both a haematoma and torn tendon sheath.
A statement on her website said: "Kim's presence in Paris is very uncertain. Her ankle is completely immobilised."
The French Open starts on 22 May, in exactly six weeks, and
stated: "Kim faces a recovery of at least four to six weeks."
The world number two's last competitive match was on 31 March, when she lost to the in-form Victoria Azarenka in the quarter-finals of the Sony Ericsson Open in Miami.
Shortly after her exit from that event, the 27-year-old announced she would be out for a month to deal with shoulder and wrist problems.
Clijsters has twice been a losing finalist at the French Open, in 2001 and 2003. Last year an ankle injury forced her to miss the tournament.