Midfielder Will Vaulks says Oxford United need to be “realistic” about expectations in games against sides such as Sheffield United who are chasing promotion from the Championship. The U’s suffered a 3-0 defeat at Bramall Lane on Tuesday – a result that leaves them two points above the relegation zone having won just one of their past 12 games (five draws, six losses). “From Saturday [a 6-2 loss to Middlesbrough], we obviously wanted a response,” Vaulks told BBC Radio Oxford.