By Josh O’Brien Jurgen Klopp has claimed referee Chris Kavanagh was not at the “level of the game” during Liverpool’s Carabao Cup final win over Chelsea. The Reds eventually got the better of the Blues when captain fantastic Virgil van Dijk headed home from an inviting inswinging corner three minutes before a potential penalty shootout. While it ended all smiles from a Liverpool perspective, Klopp did have one complaint come full-time. Reds midfielder Ryan Gravenberch left the game on a stretcher inside the opening 30 minutes after a brutal tackle from Moises Caicedo. To add insult to literal …