The Liverpool Echo reported that after Leoni suffered a serious injury to the ACL, Liverpool could use a UEFA rule change to submit Chiesa to the team's Champions League roster.

As Leoni may be out for most of the season, Liverpool can choose to make at least one adjustment to their Champions League squad. UEFA revised the registration rules on the eve of this season, allowing the club to make a lineup change in response to players' long-term injuries during the league stage. If a non-goalkeeper is expected to be out for at least 60 days, the club can now replace him before the sixth game day.

Therefore, Liverpool will be able to replace Leoni with Chiesa or any other player not selected for the roster. Previously, coach Slott excluded Chiesa from the original Champions League roster caused controversy. Slott admitted Chiesa was upset by the decision, but at least responded well in training.

The original decision to abandon Chiesa was due to UEFA regulations and the operation of the Reds on the transfer deadline. Slot chose to put Ngumoja on the roster. The 17-year-old local player has to occupy one of the 17 overseas players because he just joined from Chelsea last summer and is not qualified for the "B-list" or local player.