The report says Xabi Alonso introduced Morgan Rogers, Reece James, Cole Palmer and Pedro Neto at half-time. That quartet immediately altered Chelsea’s attacking threat and gave the home side greater control in the final third.
The penalty that began Palmer’s contribution was important, but the broader impact came from Chelsea’s increased pace and movement after the interval. The substitutions gave Leeds a different problem from the side they had controlled early on.
The report says Leeds led through Tarik Mehremovic before Brenden Aaronson doubled the advantage shortly after half-time. That start offered a clear route to an upset, particularly with Chelsea having made several changes to their starting line-up.
But Leeds could not protect their advantage once Chelsea’s senior attacking options arrived. Even after Dominic Calvert-Lewin reportedly reduced the deficit to 4-3, the visitors were unable to slow the game. Valentin Barco restored Chelsea’s two-goal lead before Welbeck’s stoppage-time finish sealed the reported scoreline.
That sequence underlines the risk of allowing a knockout tie to become stretched. Leeds had the initiative, but Chelsea had more game-changing options available.
Chelsea’s route to this stage had included a 2-0 win over Luton Town, while Leeds had beaten Nottingham Forest by the same score. The reported comeback now gives Chelsea momentum, but also highlights how vulnerable they can look when rotation disrupts their rhythm.
The next round will test whether this was a one-off rescue act or evidence of genuine squad depth.