Liverpool boss Jurgen Klopp has confessed he intends to take a break from coaching upon the expiration of his contract in 2022.The 52-year-old arrived at Anfield in 2015, replacing Brendan Rodgers in the hot seat after a successful spell in charge at Borussia Dortmund.Klopp quickly transformed the Reds into a high-energy, attack-minded outfit capable of competing with the best teams in Europe, but was made to wait for his first piece of silverware.The German suffered Carabao Cup, Europa League and Champions League final defeats before finally breaking his duck on June 1 in Madrid.Liverpool lifted a sixth European Cup after beating Tottenham in the showpiece event, with more success expected in the 2019-20 campaign.The Reds have kicked off the new season in perfect fashion, beating Norwich, Southampton, and Arsenal in the Premier League, while also clinching the UEFA Super Cup at Chelsea's expense.However, Klopp has now revealed that he plans to walk away from the club when his existing deal runs out, citing a potential need to restore "energy levels".When asked if a sabbatical could be on the cards in three years time, Klopp told German magazine Kicker: "It looks like it. Who can now say if he can give it his all in three years' time?"If I decide for myself that I can't go on anymore, I'll take a break and in that year I'd have to make a definite decision [if he wants to continue at all]."I have absolute energy, but I have one problem: I can't do 'a little bit.' I can only do 'all or nothing.'"But the chances are very high that my energy levels will go up again [after a year's break], and that I can then do the job the way I want to."Liverpool returned to the top of the Premier League standings with a 3-1 home win over Arsenal on Saturday, with reigning champions Manchester City two-points further back in second.Klopp's side missed out on the title in agonising fashion last term, finishing one point behind City despite only losing one of their 38 fixtures.They will be hoping to go one better this time around, with a tough trip to Burnley up next before the international break takes effect.