Goalkeeper Kelleher was handed his first competitive appearance for the Reds’ first team in Wednesday’s Carabao Cup third-round victory over MK Dons.
The 20-year-old marked the occasion with an impressive performance, too, making two excellent second-half saves to preserve the visitors’ clean sheet in their 2-0 win at Stadium MK.
Speaking to Liverpoolfc.com post-match, Kelleher said: “It was an unbelievable night for me making my debut. I can’t sum it up in words really, it’s just unbelievable. To play for Liverpool for the first time was unbelievable.
“It gives me motivation to go and do it again and keep playing.