With the Reds not travelling to Old Trafford until Monday night, the schedule was tweaked to fit in a session at the AXA Training Centre on Saturday.
There remain a number of absentees, of course, including Diogo Jota, who is still sidelined with a hamstring injury aggravated during pre-season.
That leaves the squad ranks depleted even further, and it is likely that the substitutes’ bench will be padded out with youngsters from the academy.
It remains to be seen whether he will be involved in Manchester, but Stewart was given an opportunity to impress in training on Saturday regardless.
This came partly due to the absence of both Jota and Nunez, but also due to the teenager being ineligible for the Liverpool under-21s in their meeting with Blackburn due to a red card of his own last time out.
Oakley Cannonier started in his place for the 1-0 win at the academy, with Stewart’s misfortunate turning into a surprise chance in front of Klopp and his staff.
Stewart is no stranger to first-team training, but a year out with an ACL injury has proved a major roadblock in advancing to the senior squad on a full-time basis.
However, he is highly rated within the academy and has already scored his first goal of the season in the U21s’ 1-1 draw with Brighton, after impressing throughout pre-season.
There is a small chance, then, that he catches the eye in these days spent with the first team, with the current situation certainly aiding his chances.