Dutch winger Arjen Robben today said his latest injury, which has played havoc with his Bayern Munich and international career this season, was the worst he has ever experienced. \"It\'s the worst injury of my life,\" Robben told German daily Bild on Friday. \"You can\'t imagine how painful it has been and how difficult the healing process was. I\'ve never experienced anything like it, and I\'ve had some injuries in my time.\" Among Bayern\'s fans Robben has become known as the \'crystal man\', a nickanme which refers to his poor injury record since joining the club in August 2009. So far this season, Robben has played only one game over 90 minutes and made four league appearances in total as he battled with a troublesome groin. A month after undergoing surgery, he returns to the Bayern substitutes bench on Saturday as the league leaders welcome reigning champions Borussia Dortmund for the pick of the weekend\'s Bundesliga matches. However it is believed Bayern will only use him if necessary, and the 27-year-old winger says he won\'t be rushing things. He returned to training last week, only to quit the session early complaining of pain in the pubic bone and groin area. \"Of course I want to play, I\'m desperate to play. But I\'m not going to take any risks by trying to come back too quickly,\" added Robben, who has been training midweek with the squad.