Patrick Agyemang has entered into a month-long loan deal with Millwall.
The Queens Park Rangers striker has fallen out of favour at Loftus Road after the first few weeks of the season.
"I'm pleased to be here," he told the Lions' official website.
"I'm not in the 25 at QPR so I'm happy to come to Millwall and play some games."
The 31-year-old is expected to make his debut for the club, currently 23rd in the Championship, this Saturday away to second-placed Middlesbrough.