The Merseyside outfit are seventh in the Premier League table after winning just four games out of nine.
"We've got a fit group of lads and we may not be performing as well as we know we can, but that grit, determination and character is what you need," Lallana told the club's official website.
"It's given us a lift. Hopefully it triggers a good performance at the weekend. There are tough games coming around ever so quickly now.
"We know we've got a good size squad and we know everyone is going to need to be used at some point, so everyone will get a chance to do well."
Tomorrow, the Reds will take on Newcastle United at St James' Park.