Arne Engels then equalised from the penalty spot for Celtic.

Lawrence Shankland gave Hearts the lead through a fine corner and headed effort at the back post...

45+4 mins: The whistle goes to end the first half.

Arne Engels has given some hope to the home fans after Celtic were awarded a penalty for handball.

It felt harsh against Kyziridis but Engels slotted it home beautifully.

All to play for yet.

Arne Engels places the ball on the spot and rolls it underneath the diving Alexander Schwolow.

Celtic are level again in this match!

You couldn't wrist this script, notes The Independent’s Jamie Braidwood.

McInnes went straight the face of the fourth official and asked him, "Are you kidding me?" Another handball, another Celtic penalty.

45+1 mins: Penalty to Celtic!

Kieran Tierney gets the ball and flies down the left wing. He hits his cross as Alexandros Kyziridis leaps to make a block.

The ball strikes his hand from a yard or two away as he drops to the floor and the referee points to the spot.

Unbelievable. McInnes raises his hand and lifts a clenched fist towards the Hearts fans in the corner, notes The Independent’s Jamie Braidwood as a stunned. Celtic Park.

Shankland, the captain, delivers for Hearts in their time of need. What a remarkable twist it is that Hearts clearly planned something from the first corner, only for it to almost go horribly wrong.

They got a second attempt, and it could be the goal that wins them their first title in 66 years. "We shall not be moved" rings out from the away end.

45 mins: There’ll be three minutes to play before the end of the first half.

Celtic now need to score twice to win the title.

Wonderful!

Celtic Park has been silenced. Stephen Kingsley whips the second corner in succession over to the far post where his captain, Lawrence Shankland, leaps free and powers a header into the back of the net!

Hearts have taken the lead with a huge goal in this title decider.

42 mins: Celtic have played like this a few times this season.

They’ve offered hardly anything in this half but usually they follow it up with a blistering onslaught after the break.

The game might be shaping up for something similar.

Hearts, however, are the ones pushing the issue approaching half-time. They win a couple of corners back-to-back....