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Sirens sign O’Brien to one-year deal

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WEST ORANGE, NJ - NOVEMBER 11: Casey O'Brien #17 of the New York Sirens skates during PWHL training camp on November 11, 2025 at Richard J. Codey Arena in West Orange, New Jersey. (Photo by Rich Graessle/Getty Images) (Rich Graessle/Getty Images)

The last unsigned first-round pick from the 2025 PWHL Draft is now under contract.

The New York Sirens announced a one-year deal for forward Casey O’Brien on Tuesday.

O’Brien, 24, was the third overall pick this past spring. She appeared in both of the Sirens’ preseason games, notching three assists.

“Casey brings elite hockey IQ – a sixth sense to create, connect plays, and make everyone around her more dangerous,“ Sirens general manager Pascal Daoust said in a statement. ”Exceptional in the faceoff circle and at playing the puck in all 360 degrees, she turns every teammate into an option with her vision and awareness. A multiple individual award winner, championship team player, and former captain, Casey has a true champion’s DNA and the talent to become one of the top American forwards in the league. Her skill, leadership, and presence make our team stronger every single day.”

A native of Milton, MA, O’Brien won the Patty Kazmaier Award this past spring as the nation’s top collegiate player at Wisconsin. She appeared in 41 games for the Badgers, scoring 26 goals and adding 62 assists. The Badgers won their eighth National Championship and second in three years this past season.

The Sirens open up their 2025-2026 season on Saturday with a visit to the Ottawa Charge