While Reid's been on the outs at the London club with no games played in the last two and a half seasons, he offers Liverpool one thing they currently do not have at the centre back position – experience.
The club is desperately in need of reinforcements with usual starters Virgil van Dijk and Joe Gomez out indefinitely, and fellow first-teamer Joel Matip recently suffering an ankle injury.
That has left the likes of midfielders Fabinho – who is also injured – and Jordan Henderson, alongside young defenders Rhys Williams and Nathaniel Phillips as their first-choice options at the back.
Reid would thus get a good amount of game time, making a switch to Liverpool a no-brainer from a personal point of view.
West Ham manager David Moyes told the website Claret and Hugh the Kiwi had been training after enjoying "a bit of time off when he got back from America''.
"We have him back and if he wants to go out on loan we'll be open to that. But we're also very happy to have him around the place. He's been a great ambassador for the club, and he's someone I respect greatly. At the moment we have four centre-halves who are competing for positions, and we don't have too many openings in that area at the moment," Moyes said.
Up until the 2017-18 campaign, Reid donned the Hammers' captain's armband on a number of occasions and emerged as a key player, notching up 17 or more league appearances in six consecutive seasons.
