Brown was loaned out to tomorrows opponents Aldershot by former boss Andy Scott and has impressed at the EBB Stadium.
"All the reports we have had of Troy have been positive," Evans told Millers Player.
"I knnw he had one or two average games when he was here earlier in the season but having spoken to some good people at Ipswich, the previous management team and captain, they have been very positive about him."
Brown, who signed a two year deal last summer, supposedly had problems settling in the north. He cannot play against the Millers tomorrow.
Source: FOOTYMAD