The Gypsy King vs. The Mountain in 2022?!?
It appears we could very well see that ... 'cause after Tyson Fury threw a verbal jab at "Game of Thrones" star Hafthor Bjornsson on Wednesday -- the actor-turned-boxer accepted a fight!!!
Fury's barb was pretty clever ... on his Instagram page, he wrote, "I wonder if Thor Bjornsson could take a crashing right hand to that big jaw," adding, "Who would have Thor's hammer? Would this mountain be too big to climb?"
It didn't take long for Thor -- a former World's Strongest Man -- to see the quips .