JORDAN Archer is set to return from injury this week.
Archer has missed the last six games but has been involved in full training with the first-team squad.
Millwall face Rochdale at Spotland on Tuesday night, before a trip to Swindon on Saturday.
Lions boss Neil Harris said: "He's been back in training so we hope he comes through and is available for the 18 to be able to travel.
"If it's not going to be Tuesday then certainly for Saturday."
Tom King has deputised for Archer, keeping four clean sheets in six games.
King conceded six goals in the FA Cup quarter-final defeat to Tottenham Hotspur, including letting one slip through his grasp in injury-time.
Harris was pleased that he didn't let that affect him in the 0-0 draw with Bury last Saturday.
"He'll be thankful for the superb defensive display in front of him from the unit," Harris said. "They had one or two shots on target from 30 yards, so it was a comfortable day for him.
"But it was still a nice one for him, not because of the result but because of the last-minute goal we let in at Spurs.
"He's been brilliant: six games, four clean sheets, one goal conceded in five league games. He'll be the first to admit that comes mostly from the defensive performance in front of him.
"It's still his learning curve, though, and for a 21-year-old to have had that exposure, it's a really good first season for him involved in first-team football."
Image: Millwall FC