Superman's fists were fast enough to hit any opponent, and he didn't need to use his legs at all.
But seeing that half of Luke's body had been 'roasted,' he had subconsciously kicked out at Doomsday.
Doomsday's big head turned half a circle at the heavy blow, and the heat beam finally moved away from Luke.
At the same time, its huge body was sent flying.
At this speed, it would pass by ten meters in front of Luke in the next moment.
How could Luke waste the opportunity he had gotten in exchanging for acting miserable?
Pushing off of his toes, he abruptly sped up and brushed past Doomsday.
The sword was just barely able to reach its ankle. Relying on the sharpness of the battle goddess' longsword and momentum, Luke successfully cut through most of the tissue in Doomsday's leg and some bone.
Superman was only slightly surprised, before he lunged forward without hesitation.
Sensing the danger, Doomsday roared and punched out.