Derek McInnes faces a critical test as his Rangers team prepares to host Celtic at Ibrox in the Premier Sports Cup quarter-final on Sunday. The match carries significant weight for McInnes, who has yet to secure a victory against Celtic since taking charge of Rangers, a result that would bolster his position as manager and help him move past the painful memories of last season.

The emotional backdrop for McInnes remains vivid. On May 16, Celtic clinched the Scottish Premiership title by beating Heart of Midlothian, McInnes’ former team, in dramatic fashion. The defining moment came when Callum Osmand scored in the final seconds, triggering a pitch invasion and chaotic scenes at Celtic Park. The experience left a lasting impact on McInnes, who has described the journey home to Tynecastle that night as a lonely one, underscoring the psychological toll of that defeat.

Now leading a new club with different circumstances, McInnes’ focus is squarely on Rangers and the challenge of overcoming Celtic—a fixture colored by intense rivalry and high expectations. However, the Premier Sports Cup match will be played without Celtic supporters, as away fans have been excluded, shifting the usual tribal atmosphere and altering the dynamics on the pitch.

McInnes emphasized the need for his players to maintain professional discipline and consistency, a challenge for a squad that has shown fluctuating performances throughout the season. While Rangers secured a draw against St Mirren in midweek, questions remain about their ability to sustain intensity over the full 90 minutes. The manager’s future may hinge on his team’s response to the unique pressures of an Old Firm meeting, particularly with the home support behind them.

The consequences of defeat for Rangers would be severe. Unlike Celtic, who could attribute a loss to playing away and the absence of their fans, Rangers would face considerable scrutiny. A failure to win at Ibrox under these conditions could be viewed as a collapse under pressure, further opening old wounds for McInnes and intensifying criticism of his leadership.

Sunday’s match will not only test the players’ resilience but also provide McInnes with a revealing measure of their mental strength and his own capacity to navigate the demands of managing one of Scottish football’s most high-profile teams.