Classic grappler vs striker matchup. Tanquinho presents the exact opposite challenge that Lineker did, the fact that Garbrandt has been preparing for a striker will give Tanquinho a slight advantage that he's really going to need. I lean towards Garbrandt by KO but if Tanquinho gets it to the ground Garbrandt is in a lot of trouble.
I hope they build Tanquinho up well, he has the best modern grappling credentials by far in the UFC, he has done well in ADCC and won no gi worlds multiple times in the IBJJF. I could see him sticking around for a while. He's also tapped Ryan Hall, who people are shitting their pants over as far as grappling in MMA goes.