Everton caretaker manager David Unsworth has said that his team may need to spend when the transfer window opens in January if they are to secure Premier League survival.

Unsworth has won just once in seven games since taking charge of the club, with their 4-1 thumping by Southampton on Sunday leaving them just two points above the relegation zone.

The Toffees spent almost £150m over the summer but the 44-year-old believes that further investment in January may be necessary to turn his side's season around.

"If it needs players who are injured to come back or January to come and go and get new players, something has to change," Unsworth told Sky Sports News.

"This group of players is underperforming, whether it is Ronald [Koeman] in charge or me in charge it isn't working."

Everton face West Ham United on Wednesday, knowing that a loss could see them drop as low as 19th.