Ram joining Lions
Millwall are set to sign Derby County striker Nathan Tyson (30) on a standard loan deal until the end of the season.
The former Wycombe and Forest front man will put pen to paper on Thursday morning before training with the squad in preparation for Saturday's Championship clash with Burnley.
Nathan has scored 94 goals in a career totalling 264 starts and 136 sub appearances, finding the net five times for The Rams this season.
He is eligible to play against Villa in next Friday's FA Cup Fourth Round tie as he has not appeared in this season's competition to date.
Nathan has been handed the number 10 shirt.