Millwall have secured a deal to keep Arsenal teenager Jay Simpson on loan until the end of the season.
Simpson originally joined the Lions before the close of the summer transfer window and the striker has scored twice in 18 League One appearances.
He has impressed Millwall boss Kenny Jackett, who has been anxious to extend the 19-year-old's stay at the Den.
Arsenal have now agreed to the deal and Jackett is looking forward to working with Simpson in the second half of the season.
"I'm very pleased that he'll be staying until the end of the season," Jackett told the club's official website.
"Jay is a very promising young player who I am sure will improve further during the second half of the campaign."