In this season's UEFA Champions League, Liverpool have been one of the most dominant sides. Jurgen Klopp's side have displayed tremendous energy in Europe this term and their desire to succeed makes the Reds a deadly force, who could potentially go all the way and win the trophy this year.They are definitely the tournament's dark horses and judging by recent performances, it could be possible.Having started the knockout stages off to a flyer, it seems almost impossible for Portuguese giants FC Porto to recover from a whopping 5-0 aggregate deficit ahead of the second leg in a fortnight's time. If they continue to cause the same level of dominance in the final third, who knows?With that in mind, here are five reasons why Liverpool should be taken seriously in the Champions League this term.#1 They are producing resultsIn their last group stage fixture, Liverpool put seven past Spartak at home in DecemberIf you're a neutral or simply a lover of action-packed football, you're definitely enjoying Liverpool decimate their opponents in Europe this term. They have been on a roll from the group stages - where, despite three draws, they remained unbeaten and netted an eyewatering 23 goals during their six matches before Christmas.This attack-heavy mindset has undoubtedly helped them in the knockout stages thus far, having managed to prevail with a 5-0 thrashing away from home against Porto in midweek.While there are conflicted opinions in regards to their playing style against various opposition in the Premier League, they have approached Champions League competition with a different mindset, one which continues to pay off at present.