Sheffield United assistant manager Frank Barlow says new striker Chris Porter is still a week away from fitness.
The 27-year-old former Derby County and Oldham player, who arrived at Bramall Lane on a free transfer last week, has joined his new team-mates at their training camp in Malta.
But he is unlikely to feature in Wednesday's friendly against Hibs.
"Chris has a lot of work to do and he's working very hard out here," Barlow
told the Star.
"I would've thought that it's more likely he'll be involved against Doncaster.
"You never know, but I would think that's going to be the most sensible thing to do."