I've heard that Manchester United has signed him,anyone knows who he is and where he played before???

Mate, you're using the internet. Just type his name on the search engine, and do some research yourself next time, like I did now.

Name: Angelo Henriquez
Born: April 1994, Santiago; Chile

Current club: Universidad de Chile
App for club: 10 caps (8 goals)

National team app: 
Chile U15: 4 apps (2 goals)
Chile U17: 4 apps (3 goals)

That's all you should know about him.

also he is fwrd/wing

Very young and talented. If he keeps developing he will be a future star. But don't u guys think Manchester United already have too many young forwards? 

ManUtd is also planning to sign Ajax Youth player Viktor Fischer 

<http://bleacherreport.com/articles/1212127-manchester-united-transfer-news-will-the-red-devils-sign-ajax-wonderkid> 

Young players are good, but there should be a balance. Because, imagine, Man Utd signs all these kids, their UEFA Champions League will end in Europa and even worse... So it will be great if they can buy Sneijder.

wow man utd really gettin some good player and expertfootball11 i agree man utd should buy sneijder but i dnt think he will leave his current club