Hartlepool United's caretaker boss Chris Turner is backing his side to cause an FA Cup fourth round shock when they play host to Premier League West Ham.
Pools knocked top-flight Stoke City out in round three and Turner believes that a repeat could be on the cards at Victoria Park this weekend.
He told the Hartlepool Mail: "The difference between the two teams is we know who they are, but they don't know who we are. Their lads have never seen us play.
"It's a challenge for the lads and, when you're playing in League One, to play against those in the top league is fantastic for them.
"We just want to put on a show on the day and give it our best.
"The players should go out on the field of play and enjoy pitting their wits against somebody who plays every week in the Premier League."