Thomson suffered a fractured fibula in the clash with Leicester City earlier this season.
“Kevin is coming along well. That’s a tribute to the hard work he has put in since picking up the injury, and the hard work of our physio department,” said Middlesbrough boss Gordon Strachan.
“Kevin trained with the juniors on Thursday and Friday and then with Steve Agnew on Saturday.
“Then we brought him into our training session yesterday [Monday].”
