Jurgen Klopp had a wholesome reaction as he prepared to bring on Trey Nyoni in a history-making substitution on Wednesday night. <br /><br />Klopp watched on as his side triumphed 3-0 over Southampton in their FA Cup fifth-round clash - with Jayden Danns and Lewis Koumas finding the net to wrap up a win. <br /><br />Several Liverpool's youngsters were given a run out at Anfield - given the Reds' mounting injury concerns - with 16-year-old Nyoni included amongst them. <br /><br />Nyoni was brought into the action in the 78th minute and, in doing so, became the youngest player to ever feature in the FA Cup for Liverpool. <br /><br />You could tell it was a big moment, not only for Nyoni but also for Klopp, who had a wide grin drawn across his face as he prepared to bring the youngster on. <br /><br />Footage from ITV's broadcast showed Klopp placing an arm around the teenager, laughing and patting him on the back before Nyoni entered the pitch.<br /><br />At 16 years, eight months, and eight days, Nyoni beat the record held by Harvey Elliott - who was the player he replaced on the night. <br /><br />Elliott had previously held the record after making an appearance in their 2020 FA Cup win over Everton when he was 16 years, nine months, and one day old. <br /><br />Afterwards, Liverpool boss Klopp compared Liverpool's young team with darts World Championship runner-up Luke Littler. <br /><br />'It is a little bit like the new darts sensation, it is fine for tonight,' said Klopp. <br /><br />'Tomorrow, leave the boys in the corner. Everyone who is with us should have our moments, they will have more moments than we expect.<br /><br />'Don't forget it when the transfer window opens, don't (ask for) 12 signings!'<br /><br />Elsewhere on the night, fellow youngster Jayden Danns scored a brace before describing the occasion as a dream come true. <br /><br /> Speaking to ITV afterward, Danns said: 'It's a dream come true, I've supported the club since birth so to come on and score at the Kop end was unreal.<br /><br />'It doesn't feel real to me, it feels like I'm in a movie. I don't think I'll sleep tonight!' <br /><br />Danns went on to reflect on his two goals, as he said: 'It was this lad [Elliott] who slipped me in, I saw him and thought he's got the vision and the 'keeper came close, so you just have to drink it.