As the Scottish Premiership title race reaches its boiling point, Celtic manager Martin O'Neill has made a bold claim ahead of Saturday's season-defining clash: "Everybody wants Hearts to win."

The stakes couldn't be higher. Defending champions Celtic host Hearts at Celtic Park (12:30 BST), needing a win to leapfrog their rivals into first place. For Hearts, a win or draw would secure the league trophy for the first time since 1960—a drought that has the entire nation, according to O'Neill, rooting for the underdog.

The tension has been building all week, fueled by controversy from Celtic's midweek victory over Motherwell. With the score tied at 2-2, a VAR intervention awarded Celtic a penalty after Motherwell's Sam Nicholson was judged to have handled the ball following a challenge from Auston Trusty. Kelechi Iheanacho converted the spot-kick, keeping Celtic within a point of the leaders.

Hearts manager Derek McInnes didn't hold back, calling the decision "disgusting" and claiming his team was "up against everybody." The sentiment was echoed by pundits across the league, who questioned whether the penalty should have stood.

O'Neill, however, remains unfazed. "It's obviously been magnified because of the occasion," he said. "Am I surprised? No, because everybody wants Hearts to win. It's really as simple as that. Everybody outside Celtic and the Celtic diaspora wants Hearts to win. And if it wasn't Hearts, it would be Rangers or somebody else. That's the nature of it."

But the Celtic boss stood firm on the penalty decision itself. "I think it's a penalty. He handled the ball. When you see it again properly, it is a penalty," O'Neill insisted. However, he acknowledged the broader debate surrounding handball rules, calling for a summer review. "Throughout Europe, we've seen penalties given that wouldn't have happened years ago. It looks very harsh. This should be a major point of discussion—accidental handball, unnatural positions, players being pushed into situations. It all needs to be looked at. But as the rules stand, that was a penalty."

With the title on the line and emotions running high, Saturday's showdown promises to be a thriller. Whether it's Hearts' historic quest or Celtic's fight to retain their crown, one thing is certain: all eyes will be on Glasgow.