Former Wales fly-half Dan Biggar suffered a painful back injury in the opening stages of his return to action for club side Toulon.<br /><br />Biggar retired from international duty following Wales' quarter-final exit at the hands of Argentina at the recent Rugby World Cup.<br /><br />He was back in action for the first time in a Top 14 clash against Perpignan on Saturday night. <br /><br />However, his return lasted only 10 minutes after he picked up the nasty-looking injury.<br /><br />The 34-year-old was getting set to take the conversion after team-mate Charles Ollivon had scored the first try of the game.<br /><br />But footage shows Biggar clutching his back before collapsing to the floor in agony just as he was about to strike the ball.<br /><br />The Toulon medical team rushed onto the field to tend to the stricken No 10, and he was eventually helped from the field and replaced.<br /><br />Biggar suffered a pectoral muscle strain at the World Cup in France during Wales' crushing 40-6 win against Australia in the pool stage.<br /><br />He sat out the game against Georgia that followed but returned for the defeat to Argentina in Marseille. <br /><br />In his Mail Sport column announcing his retirement, Biggar admitted that the physical toll of a 16-year professional rugby career was a factor in the decision. <br /><br />He said: 'My body has started to feel more like a 33-year-old's in the last 12 months. I still feel great on the pitch, but the recovery days and the days off are getting a little harder.<br /><br />'I've always wanted to stop on my terms. If I don't retire myself, then I know I will get pushed out eventually… I have seen so many great players get phased out by injury or selection, and I didn't want that to happen to me.'
