Liverpool goalkeeper Alisson kept a clean sheet against Barcelona on Tuesday night sporting a special shirt.
Before the stunning 4-0 Champions League triumph, the Reds explained the change.
A Liverpool statement read: "Liverpool will use a one-off goalkeeper shirt for tonight's Champions League semi-final, second leg with Barcelona.
"Alisson Becker is set to sport an alloy-coloured jersey, produced by New Balance, for the Anfield affair due to the regular 'keeper strips clashing with the kits of Barcelona and the match officials.
"However, supporters should note that this is a one-off shirt and will not be available for purchase."
Liverpool's new black home goalkeeper shirt for the 2019/20 season has already been released.
Liverpool goalkeeper Alisson is wearing a special one-off "alloy-coloured" kit tonight.
This is because all other designs clash with Barcelona's shirts or those of the match officials.
It will not be available for sale so take a look at it right here.#LIVBARpic.twitter.com/MyWV4131If — Standard Sport (@standardsport) May 7, 2019