Barcelona welcome the Reds to Camp Nou in the Champions League semi-final, with Suarez set to start against his former club.
Suarez missed out on the Premier League title in 2014 during his time at Anfield, before a securing a £75million to Catalonia.
And even though he has fond memories of his time on Merseyside, the 32-year-old has promised to display the same ruthless nature which made him a hero in Liverpool.
He told the Daily Mail: “In the build up to the game it’s nice to talk about how massively grateful I am to Liverpool for all they gave me but, you know me, once I’m on the pitch there will be no friendships, no companions, no thought for all the lovely moments,’ he says.
“I’ll defend the colours of Barcelona with all the pride in the world.”
After Liverpool’s demolition of Huddersfield on Friday night, the Reds usurped Manchester City at the top of the Premier League table – a position they will hold until Sunday, at least.
And even though Suarez was full of praise for Jurgen Klopp’s side, the Uruguay international believes lifting the trophy five years ago would have been a bigger achievement.
“I think that with us it was different because there was a sense of now or never,’ he added. “For the current squad this is the second season they have been in contention and last year they played in the Champions League final.
“They have more experience. They know how to approach the games. We weren’t always able to handle those moments.
“What happened with Stevie [Gerrard] was bad luck, and that gets remembered, but also against Crystal Palace [the 3-3 draw when they had led 3-0 with 11 minutes left].