Mac Allister struck the only goal of the night as Liverpool won their Champions League encounter 1-0 at Anfield on Tuesday.
The Argentina international said: “I think it was a good game against a really good team.
“An important win but we know that it doesn’t mean anything because we had the experience of last season when we finished first (in the league phase) and after we were out quite early. So, we need to keep on going, I think it’s important to build confidence. It’s a good day.”
On his goal, he added: “Normally I’m the one who blocks for Hugo (Ekitike) but at that time I blocked and I saw the space. It was a good ball from Dom (Szoboszlai), I just had to head it.
“He (Thibaut Courtois) is a fantastic ’keeper, as we all know. He had a few saves. I think he’s a really good ’keeper but today I think we were better and we deserved to win.”