Millwall have signed goalkeeper David Martin on a short-term contract until January 2018.
The 31-year-old, the brother of former Lions defender Joe Martin, joins the Championship side as a free agent having left MK Dons in the summer.
Martin joined Dons for a second time in 2010 and is the club's second-highest appearance maker, playing more than 300 games - including 42 last season.
He will compete with Jordan Archer and Tom King for the number one position.
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