George Fisher Photo: PHOTOSPORT Fisher collided heavily with Stars defender Elle Temu late in the third quarter of Saturday's game in Dunedin, suffering a suspected concussion after knocking her head on the court. After 48 hours rest, the England international was reassessed by Steel's medical team this afternoon where the concussion diagnosis was confirmed. Fisher will be reassessed again next Tuesday. Olympic shot put champion out of Tokyo Games Dame Valerie Adams' gold medal hopes at the Tokyo Olympics have improved with defending champion American Michelle Carter withdrawing from next month's Games. American Michelle Carter. Photo: Photosport Carter who pipped Adams for gold at the Rio Olympics four years ago needed surgery to remove a benign tumour from her right ankle which ruled her out of this week's US Olympic track and field trials.