No, he has a foot injury. I began to feel that way when he was leaning on his team to make him able to walk. I felt that since he wasn't able to walk on his own, it might be fair to call his foot troubles an injury.
Glad it's not shattered, but from how he hobbled, it must have been badly hurt when he hit Gus with it.
And he fought 4 rounds with a foot he couldn't walk on.
Can you say "championship spirit"?
If not, just stare at that GIF of him hobbling out of the ring and think of how he never let on to that injury during the fight. Now you can say "championship spirit"!