Sam Allardyce will show "no sympathy" to former club Newcastle in what could be his final game as West Ham manager as the Magpies look to avoid relegation on the final day of the Premier League season.
Allardyce hopes the Hammers can achieve the best points haul in the three seasons since he guided them back to the top flight with a victory at St James' Park on Sunday.
The Magpies could be consigned to the drop, depending on how Hull fare against Manchester United -- but Allardyce says he cannot afford to be lenient on the side that sacked him in 2008.
"It's been talked about in the dressing room with me, Kevin [Nolan] and Andy [Carroll],'' said Allardyce, of two others with Newcastle connections.
"From our point of view it's about being professional, not about what we do because it's Newcastle and we were there.
"It's about trying to win there for the benefit of ourselves and the justification for everybody else in terms of who are fighting that relegation battle. We have to try and do our very best.
"You can't show any sympathy for anybody, because nobody shows any sympathy for you."
Allardyce also hit out at those in football with "short memories," and vowed to find an honest answer from the club's owners should his contract not be renewed.
The Hammers lost 2-1 to Everton on Saturday in what could turn out to be Allardyce's final home match at Upton Park.
The 60-year-old's contract is set to expire imminently and talks with co-chairmen David Gold and David Sullivan have been put on hold until the end of the season.
"Everybody in the world of football has very short memories," Allardyce said. "It's only what happened a couple of weeks ago or next week that matters. What happened four months ago is forgotten, whether that's good, bad or indifferent. That's football.
"I want to see it through, yes. That depends on a lot of anomalies in terms of negotiations -- not just myself but those involved around me. And of course how we're going to progress in terms of recruitment.
"I've never heard them say I'm not doing a good job. I'll find out next week and then I can ask them why -- see if they give me an honest answer.
"We're 11th with 47 points so we've got to try and get that 50-point mark and hope it gets us to 10th. Even if it doesn't it's still been an outstanding season, and for me an outstanding three years back in the Premier League.
"I've only had to worry about relegation for about six weeks in three seasons."