Defenders Andre Bikey, Seb Hines and George Friend (all hamstring) and midfielders Faris Haroun (hamstring) and Emmanuel Ledesma (knee) have all joined in with their team-mates again and will be assessed ahead of Saturday.
Boro boss Tony Mowbray told the club's official website: "Some have a better chance than others, but we'll be in a better position than we were last weekend.
"The injuries we've had were mainly strains and pulls and were only ever going to be 10 days or two weeks. The ones who don't make this game should be available for the next one."
Andy Halliday had surgery on a broken nose in midweek and although he was expected to be fit for the weekend, he finished training early on Thursday and could be a doubt.
Mowbray added: "It's just one of those delicate ones but it's not anything that stops him running and jumping."
England Under-21 midfielder Josh McEachran is making good progress from an ankle problem but may not be ready to start a game yet.
Marvin Emnes (hamstring) is still not ready to return, but long-term absentees Julio Arca (toe), Muzzy Carayol (knee) and Curtis Main (knee) all are getting close to fitness.