Conversation so far:
How did the NBA learn of Yi Jianlian?
What is the first team Yi Jianlian played for in the NBA?
On 28 June 2007, Yi Jianlian was selected by the Milwaukee Bucks with the sixth overall pick in the 2007 NBA draft.
What is the first team Yi Jianlian played for in America?
Yi Jianlian played for the Milwaukee Bucks as his first team in America in the 2007 - 2008 season.

Question: How long was his contract?
Self-contained rewrite: How long was Yi Jianlian's contract with the Milwaukee Bucks?