VIDEO

Some days ago, a video was shown by many TV stations and articles appeared in the main newspapers.

What do they show? It's important to say, before telling you about it, that Celtic Football Club, a team in the Scottish Premier League, won the Premieship title and at the end of match, as happens in these cases, the team walked toward their supporters to celebrate their 45th title win.

During the celebration of this success, Celtic's captain, Georgios Samaras, embraced a small disabled fan  and carried him while running around the field thanking theit supporters.

It was an Amazing action that moved the world.

sorry, colours went a bit mad while trying to type on the ipad and at times it highlighted whole sections when trying to change a word :) Really good attempt.

One thing to note though (although not important to the English in your text) is that Celtic and Rangers are too different teams :)

We also tend not to refer to people as disabled and rather would name the disability... In this case we would have said he "embraced a young fan with Down's syndrome"

A few days ago there was a video on television (TV) and in the major newspapers.
What was the video about? It's important to mention, before getting into that, that the Celtic Rangers, a team in the Scottish League, won its own Premiership, and at the end of match, as always happens in these cases, the whole team walked toward their supporters to celebrate their 45th title in history. So in the video, during the celebrations, the celtic's captain, Georgios Samaras, has grabbed a small child from the crowd, who happened to be disabled, and ran all over the field carrying him, and then thanked his supporters. It was a amazing story that moved the world.

VIDEO

Some days ago a video has been shown by many televisions and the main newspapers.

A few days ago a video has been playing on many television channels and images from the video have appeared in major newspapers.

What does it show? It's important to say, before of telling you about it, that the Celtic Rangers, a team in the Scotland League, won the own Premieship OWN championships. and At the end of the match, as happens in this cases, all everyone on the team walked toward the OWN supporters fans for to celebrate the 45 title of in OWN storyhistory. 
During the celebrations for this success, the celtic's captain, Georgios Samaras , has embraced a small disabled fan. disabled whit whom ran for all the field and thanked the own supporters fans.

(I don't know what this last sentence means so here is my guess)

With the small disabled fan, Georgios Samaras ran around the entire field and thanked all of the other fans.

It was a Amazing action that moved the world.

I wasn't sure if OWN was a name or if it was a mistake. I left it in as a name.