Should Liverpool finish fourth, they will face a Champions League qualifier and are likely to be unseeded, which means they will have to travel to Spain, Italy, Germany or France.
Manchester City are in the driving seat to finish third as they travel to an out-of-form Watford side on Sunday, while Liverpool, who now sit fourth, welcome already relegated Middlesbrough to Anfield. The flipside, and another significant setback at the last, would not undermine the long-term project at Anfield or the faith of Liverpool's owners in their manager, Klopp believes.
In his direct style, Klopp said "We have to win and if we have enough points after this matchday then we deserve to go through to Champions League". If Lukaku finishes the season as the league's top scorer, he'll be the first Belgian to win the Premier League Golden Boot and the first player to win it from a club outside the top four since Jimmy Floyd Hasselbaink for Chelsea in 2000/01.
Klopp admitted that securing Champions League football for next season would herald a "new era", purely because Liverpool have never been there under his management and that rather being the final game of one season, Middlesbrough presented the start of a "new cycle" because the outcome influences directly what follows.
While this game looks easy on paper, Liverpool will be a wary bunch, particularly after their recent struggles at Anfield.
Liverpool could recieve a late injury boost prior to their last game of the season against Middlesbrough.
The Reds have their Champions League qualification in their own hands after beating West Ham last Sunday. Their manager Walter Mazzarri will leave after this game, after just one season.
With so many permutations on scores, it's impossible to predict whether the play off scenario will actually occur, but the very real prospect will keep the fans of all three teams on the edge of their seats on Sunday afternoon.
The Liverpool Echo also reported Jurgen Klopp had been monitoring the player, interest that ended when Wolfsburg announced their agreement with PSG on Christmas Eve.
Watford vs Manchester City at Vicarage Road.
I do expect Liverpool to win.
Olivier Giroud has scored four goals in his last three appearances in all competitions against Everton at the Emirates.
While United boss Jose Mourinho has earmarked Mendy as a potential candidate to replace Luke Shaw, who has fallen down the pecking order at Old Trafford.
Southampton vs Stoke City at St. Mary's.
Swansea City vs West Bromwich Albion at the Liberty Stadium.