Millwall have completed the signing of right-back Shaun Cummings from fellow Championship side Reading.
The 25-year-old has signed a two-and-a-half year contract after the two clubs reached an agreement.
On his fourth signing of the January transfer window, Millwall boss Ian Holloway told the club website: "He can attack and he played in a team that got promoted out of this division.
"We're delighted to have Shaun on board as I think he can be a real asset for us over the short and long-term.
"He gives us a new option and as a player he can contribute in defence and in attack."
Cummings, who scored one goal in five Championship appearances for Reading this season, leaves the Royals after over five years in Berkshire.
"From a personal point of view I want to hit the ground running straight away and play how I know I can play," the defender added.
"I'm a hard worker and I never like to lose. I like to get forward and get crosses in but as a defender I also want to keep clean sheets and do well in my one-on-one duels."
Cummings joins a club who are 22nd in the Championship and could make his debut in Saturday's match at home to Ipswich Town.
