Nick Kyrgios returns to action with a defeat in Germany

DEFEAT: Australia's Nick Kyrgios returns the ball to China's Wu Yibing during the Stuttgart tennis tournament.Pic: Marijan Murat/dpa via AP

Nick Kyrgios' return to tennis ended in defeat after he was beaten in straight sets by Wu Yibing at the Stuttgart Open.

The Australian was competing in his first singles tournament since October last year and has been sidelined since then following his recovery from knee surgery.