"I am really proud about the team".
The big story for Liverpool coming into this clash is that they'll be without one of the most pivotal players, Adam Lallana.
"When I saw them I thought they would actually look exhausted, but they weren't".
Klopp is now without Adam Lallana, one of Liverpool's stand-out performers this season, after he picked up a thigh injury while on global duty with England.
"You think how did they have that much space in and around the box and it was Roberto all over the pitch".
If Everton win today they will be just three points behind fourth-placed Liverpool and they then face Manchester United on Tuesday where another good result could catapult them into the Champions League race.
Liverpool are still without Daniel Sturridge and Jordan Henderson because of injury, with the captain suffering a setback in his recovery from a foot problem that will keep him on the sidelines for an indefinite period. We had a lot contact and he likes the way we play and I am not 100% sure but I think he wants to do something similar.
"If you saw the games then Roberto didn't score, but he opened almost all the situations".
"When I came in I was looking for him immediately and I saw him on the bed".
But Everton's Pennington marked his first appearance of the season with an equaliser against the run of play in the 28th minute, prodding home from a corner after Dejan Lovren's clearance.
Koeman was also critical of Ireland manager Martin O'Neill's handling of James McCarthy after the midfielder aggravated a hamstring injury while on global duty this month. "When asked to play he said he felt he was fit", Koeman added.
While Everton manager Ronald Koeman addressed his war of words with Ireland manager Martin O'Neill over James McCarthy's fitness, the Dutchman also spoke about a flashpoint against Liverpool after the game.
"You need to believe and you need to believe in the quality of your team-mates and you need to show that aggression and control your emotions, because that is also a really important part of the Merseyside derby".
Liverpool are unbeaten in their last 12 league encounters with Everton (W5 D7 L0).
Liverpool are the favorites to win this match but Lukaku will make it hard for the Reds defense. The new deal will tie him to the club until 2022 and he is expected to sign it early next week.