A Bit Silly, But How Well Would Geralt do Against Monster Hunter Monsters?

So I've been getting back into both the Witcher and Monster Hunter the past couple of weeks and I couldn't help but wonder how a master monster hunter like Geralt from a more grounded setting would handle MH monsters. So imagine a second conjunction happens and suddenly Geralt has contacts for these three monsters.

1. Rathalos 2. Lagiacrus 3. Nerscylla

Bonus: Any version of Fatalis

How would Geralt fare against them?