By Jude Summerfield Arsenal have been rocked after Gabriel Jesus suffered another knee injury ahead of their FA Cup third-round tie with Liverpool on Sunday afternoon. Brazil international Jesus has been a key performer since signing for Mikel Arteta’s side from Manchester City in 2022, contributing 11 goals and six assists in the Premier League last season. However, he has struggled for fitness over the last two years, with an injury sustained at the 2022 World Cup resulting in the 26-year-old missing a considerable chunk of the 2022/23 campaign. Knee and hamstring issues have seen Jesus miss…