Jurgen Klopp has been left unimpressed by a lot of things this winter.
His push for five substitutes was snubbed by the Premier League, his ire over 12.30pm kick-offs after a Wednesday night Champions League match saw him clash with BT Sport, and after Southampton beat Liverpool on Monday night he hit out the referee and queried how many penalties Manchester United are awarded compared with his own side.
Normally associated with a booming laugh and toothy grin, Klopp often seems to catch a dose of the January blues. It is always a tricky month, with the Christmas workload catching up with players.