UFC star Johnny Walker says his shoulder surgery was a massive success and he wants to get back in the octagon the next 2 months ... with the hopes of fighting Jon Jones by the end of the year.
Walker jacked up his left shoulder back in March while doing "The Worm" dance to celebrate a violent 34 second victory over Misha Cirkunov at UFC 235.
The 27-year-old underwent surgery right after the fight -- and tells us he's back in L.A. for a checkup with the doctor who performed the surgery.