Irons forward Michail Antonio, meanwhile, has been discharged from hospital he continues his recovery following a car crash earlier in December.
The PA news agency understands Antonio was discharged just after Christmas.
The 34-year-old Jamaica international needed surgery on a lower limb fracture after being involved in a road traffic accident in Essex on December 7, and is expected to face a lengthy spell of rehabilitation.
Antonio had been able to speak to his Irons' team-mates via a video call from his hospital bed before they beat Wolves, and was also later visited by the squad and manager Julen Lopetegui.
West Ham players wore 'Antonio 9' shirts while warming up and ahead of kick-off at the London Stadium, with the kit signed by the players - including Antonio - then auctioned off with the proceeds going to the NHS and Air Ambulances UK.
Proceeds of close to £60,000 will be donated to the charities by the club, with the board having matched the amount raised from the auction.
A statement from West Ham read: "Everyone at the club would like to reiterate their heartfelt thanks to the first responders, emergency services, air ambulance staff and the NHS for the incredible support given to Michail in the wake of the accident."
West Ham captain Jarrod Bowen faces a spell out of action after suffering a fractured foot during the defeat by Liverpool.
England forward Bowen was substituted during the second half of Sunday's 5-0 thrashing at the London Stadium.
"West Ham United can confirm Jarrod Bowen sustained a fractured foot injury in Sunday's Premier League fixture against Liverpool," a club statement read.
"The injury to his left foot, picked up in the first half at London Stadium, will sideline the Hammers captain heading into the New Year."
Bowen has been a key player for the Irons again this season, scoring six goals in all competitions.
The 28-year-old revealed he had sustained the injury during the first half, but tried to play on.
"Unfortunately in the first half of our game on Sunday I suffered a fracture to a bone in my foot," Bowen wrote on Instagram.
"As always I tried to fight on and continue playing until I physically couldn't.
"Injuries happen in football, but I'm already looking forward to getting back out there as soon as possible. See you all soon."
West Ham return to Premier League action at Manchester City on Saturday.
Meanwhile, former Hammers boss David Moyes says he's not giving up on returning to management just yet, having been linked with numerous jobs, but is enjoying his time away from the game.
"I don't consider myself done yet but I am certainly enjoying some time off," he told BBC Sport.
"The one thing I won't do is put any manager under pressure personally, because I don't believe in it. I have not liked it when I have been in that position myself.
"We are all getting a little bit older and I have to make sure I am doing the right thing for myself.
"Football is in my blood. It has been since I was a boy. I love watching football and I have enjoyed my career.
"If there is another part to it, so be it. But I would only want it to be a good part. I wouldn't want to be coming in and doing something which is very difficult.
"I don't want to be at the bottom of the league and fighting relegation which I have had a few times, so we will see how things go."