Evan Ferguson is set to make his West Ham debut when they host Brentford on Saturday.
The 20-year-old Republic of Ireland striker arrived on loan from Brighton on transfer deadline day.
Ferguson burst on to the scene as a teenager at Bohemians before moving to the south coast of England, although injuries have slowed his progress this season.
But West Ham manager Graham Potter, who gave Ferguson his Premier League debut when he was Brighton boss, says the player is ready to make his mark in claret and blue.
"He's trained well," said Potter. "He hasn't played loads of football recently, so we have to be careful with that.
"He's shown his quality, is ready to help the team and we feel he'll just get better and better."
Potter has been dealt a new injury blow with winger Crysencio Summerville ruled out for up to two months.
The £25m summer signing from Leeds, who has endured a stop-start season, aggravated a hamstring injury in training.
"Summerville has had a setback so we're looking at after the international break for him," added Potter.
"The setback was at the back end of his rehab, he just felt something, which is disappointing."
The new Hammers head coach confirmed Lucas Paqueta, Edson Alvarez and Jean-Clair Todibo, who all missed the defeat by Chelsea last Monday, have trained this week and are available.
James Ward-Prowse should also be in the squad after returning to east London from Nottingham Forest, where he spent the first half of the season on loan.
"He's come back in and done well," said Potter. "He's an experienced player and I've been really impressed with him."
Meanwhile, Ipswich Town manager Kieran McKenna will make a "judgement call" on the fitness of striker Sammie Szmodics for Saturday's trip to Aston Villa.
Szmodics was forced off in the first half of last weekend’s FA Cup victory over Coventry with a recurrence of the ankle problem which had seen him miss the third-round win over Bristol Rovers and four subsequent Premier League defeats.
"Thankfully, the ankle injury that he had a recurrence of last week hasn’t been too serious, so he’s going to be a judgement call tomorrow (Friday)," McKenna said in his pre-match press conference.
Fellow forward Conor Chaplin, who has not featured since 21 December, remains out of action after suffering a number of "little setbacks" in his recovery from injury.
"With an MCL injury you can get that," McKenna added. "You can get to the very, very last bit of your rehab, but there’s a few actions or a few movements that can sometimes still stir it up.
"He’s had a slightly different course of treatment this week to see if that can accelerate it a little bit because he’s not quite been able to meet that last hurdle.
"Fingers crossed he’ll be back with the group next week."
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