The 29-year-old former England international only managed two goals in 15 games during an injury-plagued season at Goodison Park last term but Blades boss Robson remains keen to lure him to Bramall Lane.
He told the club´s official website, www.sufc.premiumtv.co.uk: "Negotiations have gone well with James and his advisors so hopefully there will be something by the end of the week."
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