Liverpool giant slayer sarr admits to having snubbed barcelona switch

I think there may be some confusion here!

I'm not aware of any information about a player named Sarr being a "giant slayer" for Liverpool, nor is there any evidence of him snubbing a switch to Barcelona.

Could you please provide more context or clarify which Sarr player you are referring to? I'd be happy to help you find the information you're looking for!