Watmore came on from Sunderland following an injury to Jack Rodwell in the first half of the contest, and he impressed.
The youngster may not have been able to help Sunderland to victory, but his energy still caused Liverpool a threat and Quinn was delighted by his display.
“His desire, it’s a joy to watch,” Quinn enthused. “He’s a young lad coming in, but he’s not worried by what’s going on around him. He’s taken the game by the scruff of its neck, but needs some of his teammates to react accordingly.”
Watmore has had to bide his time for opportunities at Sunderland, but Sam Allardyce has been more willing to utilise the former Altrincham man than any other Black Cats boss.
Watmore has now made 13 senior appearances this season, and his work-rate has made him a favourite at the Stadium of Light.
The England youth international has been a plus-point in a campaign which has been highly disappointing for Sunderland so far.
The Wearsiders are currently seven points away from safety, and they have lost their last five Premier League matches - following their 1-0 defeat to Liverpool last night.
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