Prince William Making Waves on Polo Team

03/19/2004 AT 10:27 AM EST

Prince William has made another splash, this time by proving himself king of the waves after winning a place on the Scottish universities' water polo squad, reports PEOPLE's London bureau.

William, 21, made the cut as one of a 13-man group that is scheduled to take on Wales and Ireland in a Celtic challenge next month. In making his international debut, he follows in the footsteps of his cousin Peter Phillips, who represented Scotland in rugby at the schoolboy level.

The student prince, who is team captain of his squad at Scotland's University of St. Andrews (where he is a geography major due to graduate next year), underwent a grueling three-hour test earlier this week.

Muscular William, who stands a strapping 6'3", mirrors the talents of his late mother, Princess Diana, in his prowess in the water. "Physically he is a very strong boy and beautifully proportioned -- he takes after his mom in this respect," says a family friend.

Scottish Universities Sports Federation water polo coordinator Matt McGeehan stressed in an interview with the Daily Record newspaper that the team picked William on talent alone. "He's a good player, and we treat him as one of the guys, which I think he appreciates," McGeehan said.

On Friday, Prince Charles's office at Clarence House confirmed to PEOPLE that William "is delighted to get the place. He went for trials last weekend and is really pleased to have been chosen."

It is understood that the prince -- who lives like a typical student in a four-bedroom house on the outskirts of the university town - was offered a private changing area at the trials in nearby Dumferline, but he turned it down to be with the rest of the 31 aspirants.

"He always wants to be one of the boys," says a royal source.

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