The Reds beat Porto 2-0 in the quarter-finals of the Champions League in the interval.
Klopp hopes his team can outdo his appearance last season against Real Madrid, where he lost 3-1.
And they have already taken a big step towards the end of this year with an early goal by Naby Keita before Roberto Firmino climbed the match report.
Keita replaced Georginio Wijnaldum from the weekend game against Tottenham.
But a surprise was the inclusion of Lovren, which was made by Joel Matip behind.
The Croatian has made over 160 appearances for the Reds, appearing in last year's final.
But Schmeichel, who won the hat-trick with Manchester United's rivals in 1999, was shocked to see the 29-year-old appear tonight.
Speaking of beIN SPORTS, the UK legend said: "How you prepare your team for this".
Schmeichel's criticisms are:
"I could not have predicted at all that Lovren would have played. Why is he playing?"
Schmeichel continued: "I must say that it made the back line very surprising.
"I could not have foreseen at all that Lovren would have played.
"Why is he playing?"
And the 55-year-old has the chance to do a dig at the defender.
Schmeichel asks: "What did you say".
The guest Richard Keys makes a brazen reference to Lovren's request to be the "best defender of the world" last summer.
But this only brings a big laugh from the Danish.
The conductor and presenter Ruud Gullit join them while the appearance of Croatia in the team is mocked.
This happened when Virgil van Dijk, center-center partner, did something hilarious at the pre-game press conference.