With the Premier League ratifying a deal which releases Tevez from his West Ham contract, United got the 23-year-old through his medical this morning before Ferguson put him through his paces at Carrington.
The Argentina striker will have another session on Saturday, leaving Ferguson to decide whether to send Tevez to Glentoran or Dunfermline on Wednesday for pre-arranged friendlies with a split squad.
"We are delighted," Ferguson told MUTV.
"Carlos trained with us this morning and he did very well.
"He was very enthusiastic about the situation, so he will train again tomorrow.
"Then, we have a couple of games on Wednesday; in Belfast and Dunfermline. He will be involved in one of those and play the full game."