The Ducks announced today that the club has signed center William Karlsson to a three-year entry-level contract. 
 
Karlsson, 20, was named the 2012-13 Swedish Elite League Rookie of the Year after scoring 4-24=28 points with a +17 rating and 12 penalty minutes in 50 games with HV71. 
 
Selected in the second round (53rd overall) of the 2011 NHL Entry Draft, Karlsson completed his second season with Vasteras of Sweden’s Allsvenskan league (second division) in 2011-12.