Japan's 41-7 loss to South Africa on Friday in front of 22,258 at Kumagaya Rugby Stadium was made worse by injuries to two of their strike runners, but head coach Jamie Joseph is hopeful the duo will be back soon.Flying wing Kenki Fukuoka and powerful No. 8 Amanaki Lelei Mafi were both forced from the field, leaving head coach Joseph with some headaches ahead of his side's Pool A opener against Russia in Tokyo on Sept. 20.Fukuoka pulled up lame away from the ball in just the fourth minute and was seen on crutches later on, while Mafi looked to be holding his right shoulder as he left the fi…READ FULL ARTICLE