Sheffield United face Bradford live on Sky Sports this weekend. Manager Nigel Clough has called on his players to improve their concentration after they conceded an equaliser in the ninth minute of stoppage time against Leyton Orient last weekend. Sheffield United face Bradford live on Sky Sports this weekend. Manager Nigel Clough has called on his players to improve their concentration after they conceded an equaliser in the ninth minute of stoppage time against Leyton Orient last weekend.