Brad Smith was one of few bright sparks during a dull 0-0 draw in Switzerland.
The youngster was handed his first start for the club by manager Jurgen Klopp for the Europa League game on Thursday, as the German rotated his squad.
It was a solid performance from him, as he put in an impressive display in the left-back position, proving to be a threat throughout to Sion’s defence whenever he got forward.
And Henderson has praised him for his performance, labelling it as 'outstanding'.
“It was Brad’s first start and I thought he was outstanding, brilliant going up and down the left flank. He was dangerous for us, getting good crosses in,” he told BT Sport.
The game was also an important one for Henderson, as he was handed a first start since mid-August.
The midfielder has been out injured for the vast majority of the campaign so far, having fractured his foot in training back in September.
He has been sorely missed, although the likes of Lucas Leiva and Emre Can have impressed in his absence since Klopp took charge.
That means Henderson can now focus on working his way back to full fitness without any pressure, and he says the conditions in Switzerland were testing, but he had no problems.
“It was nice to play 75 minutes. It was a tough game in tough conditions. But we’re top of the group and we move forward,” he added.
“[My fitness] was tested tonight on that pitch and I had no problem. Hopefully I’ve just got to keep managing it – it’s been fine so far.”