Fer has played with Wijnaldum at Feyenoord as well as with the Dutch under-19’s, 21’s and the senior national side.
The 29-year-old, who clearly has a positive off-field relationship with Wijnaldum, commented on his social media post.
The 11-cap Netherlands international is clearly backing his fellow countryman on Saturday as Wijnaldum seeks to win what would be the biggest trophy in his career.
He was instrumental in the semi-final victory over Barcelona as he came off the bench to score twice, and he will be desperately hoping his efforts are rewarded with a start against Spurs.
If Wijnaldum uses the motivational words of Fer and others backers to his advantage, Liverpool will surely be a dominant force in the midfield battle.