The Dane was brought in by Jurgen Klopp at the start of the summer to help the squad improve throw-ins.
Following a six month probation period, the 42-year-old has done enough to convince the club to extend his contract until the end of the season.
“Last week they just renewed my contract so that I will be there for the rest of the season,” Gronnemark revealed in an exclusive interview with Express Sport.
Gronnemark holds the Guinness World Record for the longest ever throw-in which amassed 51.33 metres.
But he hasn’t been brought in just to work on long throw-ins.
“I don’t think that Liverpool or me are expecting any goals from the long throw-ins, of course if they go in then we would be delighted,” he added.
“We are not only doing mainly long throw-ins at Liverpool, we are mostly focusing on the thing I call the fast and the clip throw in to keep possession when we are under pressure but also to create chances.
“You’ll not see a lot of long throw ins from Joe Gomez but when he does make one it will be very, very dangerous because he’s absolutely one of the best in the world at taking long throw-ins.
“He is really developing his throw-ins, they are not only very long but they are also hard and flat and that’s important once you have success on the long throws-in.
“If you ask me then it would be cool if we could score with the long throw in like England did against Croatia.
“The most important thing for me is all the other throw-ins all over the pitch.”
The coach hailed Gomez on social media after his long throw led to England’s equaliser against Croatia in the UEFA Nations League, he tweeted: “Very proud of Joe’s throw-in.”
During his first session with the players at Melwood, Gronnemark had a clear message for the squad.
“I said ‘it’s not about being Stoke number two’, first of all it was pretty cool with Stoke and what they did to survive in the Premier League,” he added.
“We are not going to be Stoke number two, we are going to try and be better at throw-ins.
“There are approximately 40-50 throws in a match and most team’s lose the ball more than 50% of the occasions when they are under pressure.”
Source : EXPRESS