Tottenham's survival hopes were boosted last time out after securing a crucial 2-1 victory over Aston Villa, while West Ham were thrashed 3-0 by Brentford.
The Lilywhites leapfrogged the Hammers and moved out of the relegation zone as a result, giving them a one-point advantage heading into the final three matches.
Roberto De Zerbi's side now host Leeds United on Monday night and West Ham face a showdown with Arsenal on Sunday afternoon.
Spurs will be hoping their fiercest rivals can do them a favour to ease the pressure somewhat ahead of their clash against Leeds.
A win for Tottenham and defeat for the Irons would almost guarantee their survival, with O'Hara predicting his former side to build on this next season.
O'Hara has outrageously tipped Spurs to finish in the Champions League next term if they stay in the top-flight, citing De Zerbi as a major factor for his confidence.
"If we stay up with Roberto De Zerbi, we'll be dangerous next season, we can get Champions League football," O'Hara said on Sky Sports.
Considering Tottenham finished 17th last term and will only survive by the skin of their teeth in 2025/26, European football of any sort seems unthinkable at this stage.