"The boy put his whole body onto the ball and I was just trying to kick the ball and I think I kicked the ball and not the boy, " Hazard told the Chelsea website.
The police also said that they had interviewed the ball boy and he did not wish to make any formal complaint.
CNN: Hazard charged with violent conduct over ball boy incident
The ball went out of play and, when a ball boy took his time retrieving it, Hazard went to fetch it himself.
Hazard and the ball boy apologized to each other after the game, Swansea said in a statement.
The saga sparked widespread debate and the ball boy's Twitter account attracted tens of thousands of new followers amid suggestions that he was time-wasting.
BBC: Swansea ball boy Charlie Morgan tweets 'crazy 24 hours'
The ball was handled by spectators, which should have denied Wales the right to take a quick throw-in, but Wales captain Matthew Rees was handed a different ball by a ball-boy and passed in to Mike Phillips peeling round the blind side.
And, although Chanderpaul went with 28 still required, Chilton hit the satisfaction of striking the winning runs off Lancashire old boy Dominic Cork with one ball and three wickets to spare.
And now he is here, a baby boy, named Jesse, strong and built like a rugby ball, with a spiky ribbon of blond hair running down the top of his head, and a long smile that just floors us every time.
"The ball boy should have let the ball go, but he was pushed first and then he kicks him, " Laudrup said.
While Hazard has been widely condemned and has apologized to the ball boy, there has also been criticism for the youngster's time wasting antics.
CNN: Hazard charged with violent conduct over ball boy incident
The ball boy came in the changing room and we had a quick chat and I apologized and the boy apologized as well, and it is over.
The ball boy later admitted he was wasting time and that was clear to see at the time.
"South Wales Police interviewed the 17-year-old ball boy with his father after the game and neither wished to press any charges, " Swansea said.
Immediately after the incident Chelsea and Swansea players went to tend to the ball boy, who was left holding his ribs, before referee Chris Foy produced a red card.
BBC: Swansea ball boy Charlie Morgan tweets 'crazy 24 hours'
First Holland goalkeeper Boy Waterman failed to deal with a free-kick and the ball fell to Liam Ridgewell, but his shot on the turn was deflected wide by John's outstretched leg.
"I've kicked the ball out the pitch, but the boy has kicked me and I got booked for it, " he said.
The company pounced when the South Korean flag was shown next to North Korean players on a big screen before an Olympic football game in Glasgow in July and when Chelsea's Eden Hazard clashed with a ball boy in Swansea in January, taking out newspaper ads.
There will be more money on Rory to make it three in a row for Northern Ireland since golf's poster-boy took Jack's advice and practiced at Olympic last week, and his high ball flight should help with those approaches to tricky greens.
"Chelsea invited the ball boy into the dressing room after the game to shake hands with Hazard and both parties apologized, " Swansea said.
When the boy fell on the ball, the player tried to kick it out from under him and was sent off for violent conduct.
The 17-year-old ball boy was a child, a volunteer helping out at a professional football match, and he was kicked by an adult player.
The ball boy, who has worked for Swansea for six years, rolled onto his back and clutched the right side of his ribs as he was attended to.
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