The England international has not played since November 8, when he suffered a calf injury in the draw at Manchester City.
He hasn’t been available for the Reds since, with both Neco Williams and James Milner – himself now sidelined – deputising since.
But Alexander-Arnold could now return against Nuno Espirito Santo’s dangerous side on Sunday evening, after taking a full part in training on Friday night.
Earlier in the day, Kop boss Jurgen Klopp had spoken about his chances of a return, stating: “There’s a chance that Naby [Keita] and Trent could be in the squad.
“I don’t know yet, we will see. Trent and Naby will do their first steps in team training. We will see how it looks and how they respond.
“They haven’t done a lot and we have to see how it develops.”
It is that final part which Liverpool ’s medical staff will now be monitoring in the next 48 hours, hoping that the right-back suffers no adverse effects of his first full session.
“Back at it” he declared on social media shortly after the session ended.
Guinean midfielder Keita also took part in the full session as he bids to make his return also.
The former RB Leipzig man was forced off after 53 minutes during the comfortable win against Leicester 12 days ago and hasn’t played since.
Keita’s return is unquestionably good news, but perhaps his immediate return isn’t as much of a necessity given the recent form of youngster Curtis Jones.
The England Under-21 international has impressed in recent weeks and scored the only goal against Ajax in midweek.
Another man being carefully monitored by club staff is Andy Robertson, who has fought through various knocks and issues in the early months of the season.
The Scotland international took a blow to the ankle early on against the Dutch side in midweek, described by Klopp as a “proper, proper knock.”
However, that doesn’t mean Robertson giving any less than 100 percent, even during the early rondos during the Friday night session.
Mohamed Salah was all smiles, while Diogo Jota continued his preparations for his first reunion with his former club, following his £41million summer switch.
Meanwhile, remaining indoors was Alex Oxlade-Chamberlain, undergoing further strength and mobility work with the medical team as he continues to plot his own comeback.
“Oxlade [Chamberlain] looks really promising,’ Klopp stated at lunchtime.
“He does the warm up with the team and we will develop that over the coming days.
“He’s not far away.”
The England midfielder was joined indoors at the club’s new training centre for the first time by long-term injury victim Virgil van Dijk.
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