Even though the match result against Sheffield United will not affect Tottenham in any way even if they lose it but I think the Tottenham fans will surely not be happy if their team are unable to beat the bottom team of the table. I guess Tottenham will wrap up this season with a victory for their travelling fans in their final match tomorrow against Sheffield United.
Of course Spurs have to win because if they lose they will likely lose their place in the European league and instead enter the conference league. That could happen if Chelsea manages to win against Bournemouth and take Spurs' place on goal difference. Therefore, Spurs cannot take this match lightly and must get 3 definite points from Sheffield.
On the other hand, as we know, Sheffield has no hope of surviving in the EPL considering that they have been included as one of the teams that were relegated this season and it is quite worrying that they will play completely against Spurs to win. If it comes to that, Spurs' chances of staying in 5th place will be even smaller and as I said at the beginning, Chelsea will take advantage of that opportunity.