Conversation so far:
What is the Indian Premier League?
team.
How did this league form?
CANNOTANSWER.
What are some important things to know about this league?
They came second in the round-robin phase of the tournament, but lost their semi-final to the Chennai Super Kings.
Can you tell me what happened after that?
17 May 2009, Yuvraj took his second Twenty20 hat-trick against Deccan Chargers at the Wanderers Stadium in Johannesburg.
Are there any other interesting aspects about this article?
In 2014, Yuvraj was bought by the Royal Challengers Bangalore for 14 crore.
Anything of importance went on after this?
Kingfisher employee union sent a letter to Yuvraj requesting him not to play for Royal Challengers Bangalore.
In 2015, he was bought by Delhi Daredevils.

Question: Was there any controversy regarding this?
Self-contained rewrite: Was there any controversy regarding Yuvraj Singh playing for the Royal Challengers Bangalore?