Manchester United manager Michael Carrick faces a critical squad rotation decision ahead of Thursday's Champions League match against Sabah. The European fixture comes just three days before the season's first Manchester derby, with United sitting 11th in the Premier League on four points from three games.

Gary Neville highlighted the mounting pressure following United's 2-2 draw with Everton. "It puts a bit of pressure on United," the pundit said. "They've got City next week and European games starting in midweek." Carrick's team has scored seven goals but conceded six this season, leaving them five points behind leaders Manchester City ahead of Sunday's showdown.

How deep is United's squad really?

Data shows Manchester United possess the Premier League's second-largest squad. Their forward areas rank highest for depth across the division. However, concerning gaps appear elsewhere. The midfield ranks eighth, while defensive depth sits at 10th overall. Right-back coverage is ninth, but left-back options are rated 18th, with Luke Shaw's injury history constantly discussed. Since 2022, only Everton and Liverpool have invested less in their backline than United, despite the club having the highest net spend of any Premier League side during that period.

This spending has not translated to genuine competition for places throughout the squad. The upcoming match against Sabah represents a golden opportunity for fringe players like Leny Yoro, Patrick Dorgu, Andrey Santos, and Joshua Zirkzee to prove their value. Success in Azerbaijan could ease fan anxiety, while failure would increase the tension around Old Trafford.

What happens when Carrick makes changes?

Recent matches reveal a worrying pattern when substitutions are made. Against Everton, Carrick made his first changes in the 70th minute. Afterwards, United's territorial identity shifted to playing more in the opposition half, but they became less effective in the final third. They created fewer chances, were less involved in duels, and conceded more opportunities. This trend was also observed in the match against Hull City, where four of the starting XI were dropped for the next two games.

Even when Carrick changed fewer than half his team, a noticeable drop-off in performance occurred. The manager utilized his squad in the season opener largely because players were still building fitness. Those adjustments brought the team closer to the expected lineup for subsequent games against Ipswich and Everton.

Where does this leave United for the derby?

The fixture list initially gave United the statistically easiest opening six games of the 2026/27 Premier League season. Yet, halfway through that run, they have dropped more points than they've gained. The squad must now navigate a congested schedule starting with Sabah and culminating in the derby against a City side that tops the table. United's next fixture is at home to Manchester City on September 13th.

Injury concerns add another layer to Carrick's selection headache. Tom Heaton, Amad Diallo, Marcus Rashford, and Manuel Ugarte are currently sidelined, limiting options in key areas. Fans can check the latest availability on the club's injuries page. The manager's ability to manage his resources during this demanding period will be tested immediately. The full fixtures schedule shows a challenging run of games after the international break.

Carrick's rotations against Sabah will be closely watched, with performance levels after changes being a particular focus. The team's current league standings position increases the importance of getting decisions right this week. How the fringe players perform in Azerbaijan could directly influence preparations for the season's first meeting with their local rivals.