Mame Diouf Joins Hannover 96, But Why?

By now all Manchester United fans would have known that we've agreed to sell Mame Biram Diouf to Hannover 96. The question, I'm pondering over is Why? Diouf was signed from Molde FK in July 2009, and after a 30-month stay in English football, he's moving to Germany. I find his transfer really weird! During all this time, he has played lot of football, he has gained valuable experience and made