Striker Wayne Rooney and goalkeeper David de Gea both trained with Manchester United on Monday morning.
Rooney missed the weekend defeat to Norwich with tonsillitis while De Gea was absent having had wisdom teeth removed.
Both were present at an open session ahead of their Champions League trip to Turkey to face Galatasaray on Tuesday.
However, midfielders Shinji Kagawa and Nani and defender Jonny Evans - who have been struggling with knee, hamstring and groin injuries respectively - were all absent for the first 15 minutes of the session which was open to the media.
Watching manager Sir Alex Ferguson is likely to give a number of players a rest as United have already won their group to ensure progress to the knock-out stage.
Although they are through midfielder Michael Carrick has no intention of spending the week trying to work out who they may play next.
"You can drive yourself mad thinking about who you might get and all the various permutations," he said.
"We just have to win our games, which we have done, and see what the draw gives us.
"Whoever it is, we will be ready in February."
In recent years, United have done rather well in the knockout stages of the competition too, reaching three finals, a semi-final and a quarter-final on the last five occasions they have progressed beyond the group phase.
"That is the big test," said Carrick.
"That is when the competition really comes alive.
"We have done the first part. The second one is when we get the really big European nights and we go away to the best places in Europe and win games.
"We have managed to do that very well over the past few years. Hopefully we can get back to that."
Of course, all the success just made the shattering disappointment of exiting at the group stage last term all the more galling.
The transformation this time around could not be more marked.
Four wins from four games looks good, even if United have been behind in three of those matches and struggled to edge past Galatasaray in their first match, when an early Carrick goal did the damage.
"It is a happier place because of what we are doing in the Champions League," he said.
"Last year we were chasing our tails a bit and came up short. This year we have been ahead of the game.
"Getting those wins and points on the board makes it an awful lot easier."