The composition - My favourite sport

This is my composition and Can anyone correct that?

My favourite sport is soccer, since I was very small. It's very popular sport in the world. At soccer my favourite positions are : Defender and Attacker, beacuse the have more bashing than others. There are some reasons why I like soccer. Firstly: This is for all age groups and gender groups. The second reason is the footballers and football teams, which I like and these are: Manchester United- For me this team is life and the main reason why I watch and like soccer. Sometimes, socerrs watch is more intereseting, than play in there.The footballers which I like are : Wayne Rooney, Arjen Robben and Van der Saar, this last was in Manchester United, but nowadays not - He created the new era in football history. There, why I like football - The persons and teams which is more important for watching and compassion Football.