BERLIN, June 17 (Xinhua) -- China's Olympic champion Zheng Qinwen withdrew from the WTA 500 Berlin Open on Tuesday due to a right neck injury.

The world No. 4 was scheduled to face former Wimbledon champion Elena Rybakina in the first round. Instead, lucky loser Ashlyn Krueger will take Zheng's place to play Rybakina. ■