Cammy Devlin faces a pivotal Old Firm Premier Sports Cup quarter-final clash with Celtic, a match that could define his early tenure at Rangers and begin to quell growing Ibrox discontent.

Since his summer transfer from Hearts, the Australian midfielder has endured a challenging start to life at Rangers. Despite arriving with a strong reputation from his performances in helping Hearts to a near-title win, Devlin has struggled to replicate that form in his new surroundings. The team's overall poor early-season performance has compounded his individual difficulties.

Devlin's early struggles have been marked by notable incidents. Within minutes of his debut, he received a red card against Jablonec. More recently, a slack pass led to Falkirk's equalizer in a match Rangers eventually won, and a misplaced pass against St Mirren in midweek further fueled fan criticism. These moments have contributed to him becoming a target for negative attention from supporters.

The upcoming fixture presents Devlin with an opportunity to step up. Manager Derek McInnes, who also moved from Hearts, is expected to select his midfield carefully. With Nico Raskin a guaranteed starter, Devlin is competing with Dan Neil for a spot alongside him, potentially in a 4-2-3-1 formation.

To succeed, Devlin is advised to simplify his game. His strengths lie in his defensive work and ability to recover the ball, rather than complex passing. Focusing on these fundamental aspects could be more effective than attempting passes beyond his capabilities, a tendency that has been observed this season.

Despite the fan criticism, there have been flashes of Devlin's potential. He was noted as one of Rangers' better performers in the opening-day draw at Dundee United and was considered a key player in a win against Aberdeen. His defensive contributions, including crucial tackles, have also been evident, demonstrating his ability to perform the basic requirements of his role.

Rangers' need for Devlin's specific attributes may fluctuate. In matches where Rangers dominate possession, his role might be less impactful. However, his ability to disrupt opponents and provide defensive stability is seen as crucial, particularly in countering threats like Celtic's Benjamin Nygren, who has a knack for finding space between midfield and attack.

Historically, the Old Firm fixture has been a daunting stage for new players. Devlin's performance in this high-pressure environment will be critical in his efforts to win over the Rangers supporters and establish himself at the club.