Phil Jones missed the open section of Manchester United training at Carrington on Monday morning ahead of Tuesday night's Champions League meeting with Real Madrid.
Jones has been a fitness doubt after injuring his ankle in the FA Cup win over Reading a fortnight ago, although manager Sir Alex Ferguson has vowed to give the England man every chance of making the last-16 second-leg clash at Old Trafford.
Jones' absence is not necessarily an absolute indicator of his chances of facing Jose Mourinho's men, although clearly it is not a positive situation either.
With Jonny Evans training on his own at the start of the session rather than involving himself in the normal keep-ball routines, Ferguson drafted in two reserve-team players to make up the numbers.
Former Charlton trainee Sean McGinty and midfielder Luke Hendrie were the lucky players.
Club director Avi Glazer was also present as the build-up to one of the most eagerly-anticipated European games stepped up a notch.