Dallas announced the deals Wednesday for the pair of 19-year-olds who were drafted by the Stars in 2011.
Ritchie split the 2011-12 season between the Sarnia Sting and Niagara Ice Dogs of the Ontario Hockey League, posting 45 points (24 goals, 21 assists) in 53 games. A second-round draft pick last year, Ritchie has played three seasons in the Ontario league.
Vance had four goals and 20 assists in 57 games for the Victoriaville Tigres of the Quebec Major Junior Hockey League last season. He was a fifth-round draft pick by the Stars.
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