LOL, currently Tottenham points are 63 and Chelsea are 60 and also, Chelsea has the advantage in number of goals. So, if for example Tottenham loses and Chelsea wins, then Tottenham will be overtaken by Chelsea. With these factors, it would not be correct if you said about that even though Tottenham lost, it does not affect Tottenham position. LOL ! Moreover, Chelsea will also play at home against Bournemouth and thus, it is very possible for Chelsea to win in that last match. Therefore, a win or draw result is still important for Tottenham to finish in fifth position and in essence, Tottenham cannot afford to lose if Tottenham want to finish in fifth position to get a Europa League ticket of course.
Tottenham Hotspur on advantage position for finishing 6th standings position than Chelsea with three points remaining, need being draw for last match enough to secure Europe League ticket for next season and I doubt Tottenham Hotspur will loss points on last match against Sheffield United.
Probably, Tottenham Hotspur has bigger opportunity with 5th position standings place than Chelsea because last match against Sheffield United without any pressure yet and getting one point enough to secure the Europe League spot position.
Indeed Chelsea has easily opponent team on last game week, I think Bournemouth more stronger than Sheffield United and has potential to stop the winning trend of Chelsea had imprressived performance recently in last several matches.