When asked about Slot's decision to take him off, Quansah said: 'It's a long season, I have the whole season to prove myself.
'It's given me a kick up the backside, you could say. I'll keep grafting on the training pitch and that's all it is.
'It's never a nice feeling as a footballer to be subbed off at half-time but at the end of the day it was the gaffer's decision but it was the right one.
'It obviously worked because we won, so I can only focus on myself, improve myself, kick forward and move on to the next game. I'm staying ready for whenever it comes.'
Quansah is competing for a starting spot at club level against Virgil van Dijk.
The academy graduate revealed how much the Liverpool skipper has helped him, saying: 'The way Virgil talks you through the game, I've never heard anyone like it.
'He might annoy us at times but it's all for the greater good.
The centre-back was player of the match as England Under-21s drew with Northern Ireland
'With all the experience he has and the situations he's been in, it's only fair that he can share his knowledge so we can be the best players we can.
'I'll have to be one of the best centre-halves in Europe if I'm starting (for Liverpool).
'It's always been the goal since I was young, I've always wanted to be the best in the world in my position and so I'm striving for that and it doesn't matter how long it takes, I'm not going to get too disheartened if it's not 2026 (World Cup), I know what I need to do and hopefully I keep improving.'
Quansah knows the more game time he has at Liverpool, the more likely he is to earn a first senior England cap.
'The more and more games I play, it will come and it's about taking that opportunity.'
'It's given me a kick up the backside, you could say. I'll keep grafting on the training pitch and that's all it is.
'It's never a nice feeling as a footballer to be subbed off at half-time but at the end of the day it was the gaffer's decision but it was the right one.
'It obviously worked because we won, so I can only focus on myself, improve myself, kick forward and move on to the next game. I'm staying ready for whenever it comes.'
Quansah is competing for a starting spot at club level against Virgil van Dijk.
The academy graduate revealed how much the Liverpool skipper has helped him, saying: 'The way Virgil talks you through the game, I've never heard anyone like it.
'He might annoy us at times but it's all for the greater good.
The centre-back was player of the match as England Under-21s drew with Northern Ireland
'With all the experience he has and the situations he's been in, it's only fair that he can share his knowledge so we can be the best players we can.
'I'll have to be one of the best centre-halves in Europe if I'm starting (for Liverpool).
'It's always been the goal since I was young, I've always wanted to be the best in the world in my position and so I'm striving for that and it doesn't matter how long it takes, I'm not going to get too disheartened if it's not 2026 (World Cup), I know what I need to do and hopefully I keep improving.'
Quansah knows the more game time he has at Liverpool, the more likely he is to earn a first senior England cap.
'The more and more games I play, it will come and it's about taking that opportunity.'
