Celtic manager Neil Lennon reckons the Scottish Premier League title run-in is equally hard for his team and Rangers.
Rangers host Dundee United on Tuesday, the day before Hearts welcome Celtic, who on Sunday are at home to Motherwell while Rangers visit Kilmarnock.
"Anything can happen here. Kilmarnock are capable of scoring goals," said Lennon after a 2-0 win at Rugby Park placed them a point behind Rangers.
"And Dundee United have third place to play for and they could take points."
And the Celtic boss added: "They will be hoping we can do them a favour on Wednesday night, which is what we want to do.
"Football has so many variables, depending on the weather, the pitches, the players' mentality, you just don't know.
"All we can do is win the games and take it right to the wire.
"This was huge today. Hearts will be huge on Wednsday night. It's why we're in the game.
"I said to the players, 'you shouldn't be feeling down about it, you should be excited' and their attitude today was exemplary."
A Scott Brown diving header just before half-time and a wonderful shot by Kris Commons, his 13th since joining Celtic in January, kept the pressure on the league leaders at Kilmarnock.
Lennon told BBC Scotland: "We were good, solid, professional, had a clean sheet, so it was a very pleasing performance. There was a good intensity to our play.
"I'm not going to be critical of that performance at all. Browny led by example, got us a goal before half-tme and we controlled the second half comfortably.
"They let themselves down on Wednesday [in the 3-2 defeat by Inverness] but it's gone, I'm not going to talk about it again and we look forward to Hearts and Motherwell."
Players' player of the year Emilio Izaguirre was substituted late in the game, with an apparent hamstring tweak, but Lennon described his removal from the match as "just a precaution".
"He's been feeling the back of the leg for a few weeks now," he explained.
"We'll have Anthony Stokes and Georgios Samaras back for Wednesday night. We're not too bad for injuries."