Definition: Compose a new way to ask the same question. The new question must be asking the exact same thing as the original question does. Without any other information, you should be able to tell that the original question and the new question are the same. Preserve bracketed phrases in your new question. You can change the rest of the question provided the above requirements are satisfied. The new question must have a natural, fluent formulation, as if it were composed by a native English speaker. You will be given three pieces of information to help you create better questions. Those are: "Answer": the answer to the question, e.g., "Honolulu". "Answer Type": the type of the answer, e.g., "Location". "Auxiliary Information" is a detailed description of some concepts mentioned in the question, if any.
Input: original question: What are the positions of the player who play for [Chelsea F.C.]?
answer: defender, goalkeeper, midfielder...
answer type: Sports position.
auxiliary information: Chelsea Football Club /Ààt É…õlsiÀê/ are a professional football club based in Fulham, London, who play in the Premier League, the highest level of English football. Founded in 1905, the club have spent most of their history in the top tier of English football. The club's home ground is the 41,837-seat Stamford Bridge stadium, where they have played since their establishment. One of the most successful clubs in English football, Chelsea had their first major success in 1955, when they won the league championship, and subsequently won various cup competitions between 1965 and 1990. The club have enjoyed their greatest period of success in the past two decades, winning 17 major trophies since 1997. Domestically, Chelsea have won five league titles, seven FA Cups, five League Cups and four FA Community Shields, while in continental competitions they have won one UEFA Champions League, two UEFA Cup Winners' Cups, one UEFA Europa League and one UEFA Super Cup. Chelsea are the only London club to win the UEFA Champions League, and one of four clubs, and the only British club, to have won all three main UEFA club competitions.

What positions do players who play for [Chelsea F.C.] play?