A gap in Fury's defenses, a gamble to be sure, but Kanitah was pressed for time and energy so he had to make some risky gambles to make some headway in this fight. At a halfway point in his rotation he made a sharp movement, breaking into a sprint as best he could. The pain in his lower back was still noticeable, but it was fast enough to clear the gap in only a few moments. With Fury's guard down and Kanitah's fists ablaze, metaphorically, although literally isn't out of the question. All he needs is a little bit of friction and paper. Where was I again? 

Oh right.

Bridging the gap between them in a few long sprinting steps, his right foot slamming into the ground just before he ran into Fury. This sudden stop turned all of that forward momentum into something that he could weaponize. Weaponize how? Well when he stopped he made sure he had his left fist raised. With an overexaggerated swing he brought his hand forward with every single pound of force from his momentum, weight, and swing. Kanitah's fist rode the wind straight towards Fury's gut, this is an upwards swing if you haven't noticed by now. Kanitah is a good foot shorter than Fury is, so this is obvious. 

With a resounding crack his fist slammed into his diaphragm with more than enough force and speed to send his foe sailing through the air. Now, some factors to take into account. Kanitah was running at about 2/3rds speed, so we're at about 120 mph. His hands are wrapped in spider web which is stronger than steel cable, so when his fist collides with Fury it's going to have a softer impact on him and a harder impact on Fury. And finally, though he does not have Darligrov his strength is three fold with the engine. This is thirty tons of lifting force, baby. 

Every single factor right there is going straight into Fury's gut, and to be honest, Kanitah's got a bit of a smug grin on his face. Though he's prepared. Kanitah's reckless and foolhardy, but this is still a gamble. If this punch doesn't send Fury flying he's got his right hand cocked backwards and ready to follow up with another punch.