Luton Town have signed experienced right-back Paul Connolly on a free transfer.
Connolly is the club's fifth summer signing after putting pen to paper on a one-year deal.
The 30-year-old, who finished last season on loan at Crawley after failing to force his way back into Millwall's first team, follows fellow new recruits Andy Drury, Ross Lafayette, Curtley Williams and Ricky Miller to Kenilworth Road.
"Luton was a club I earmarked to come to in the summer," Connolly told the club's official website.
"It's probably only one of three clubs in the division I would sign for.
"It's one of the biggest clubs in the league so it's a no brainer.
"I'm at the stage of my career where I wanted to be playing for a club that is moving in the right direction and not just sitting still.
"It's going to be great being a part of what the manager is trying to achieve.
"I've been fortunate to play for some really big clubs in my career and I'm delighted to now add Luton to that list."
Liverpool-born Connolly started out at Plymouth and moved on to Derby in 2008, then Leeds in 2010 before joining Millwall. He finished last season on loan at Crawley.