When it come to jersey numbers, the Phoenix Mercury have had several players, and while some have shared numbers, others had unique ones. So far, Kristen Rasmussen is the only player to wear No. 52 for the Mercury, but that can eventually change.

The next number is in the same boat, as only one player has worn No. 53. This number made its debut in 2002, and it has not appeared since.

Phoenix Mercur

Oct 10, 2025; Phoenix, Arizona, USA; Fans cheer during the first half of game four of the 2025 WNBA Finals between the Phoenix Mercury and the Las Vegas Aces at Mortgage Matchup Center. Mandatory Credit: Joe Camporeale-Imagn Images / Joe Camporeale-Imagn Images

Susanna Bonfiglio wore No. 53 that year, and she played a single season with Phoenix. Bonfiglio played 22 games with the Mercury that year, and she started in six of those games. She averaged 4.8 points, 1.7 rebounds and an assist in that time.

Bonfiglio’s best game during that time was against the Cleveland Rockers. The Mercury beat them 59-57 in that game, and Bonfiglio was one of three players who scored in double figures. Jennifer Gillom had 15 points, and she also had five rebounds, an assist and a block.

Phoenix Mercur

Fans cheer on the Phoenix Mercury as they play the Minnesota Lynx in their WNBA semifinal playoff game at PHX Arena on Sept. 28, 2025. / Joe Rondone/The Republic / USA TODAY NETWORK via Imagn Images

Lisa Harrison was the team’s second-leading scorer, and she had 14 points, three rebounds and a steal. Bonfiglio had 12 points, two rebounds and two assists.

Bonfiglio had another nice performance in the next game, as she had 10 points against the Portland Fire. She was one of two players who scored in double figures, as Gordana Grubin had 17 points, a rebound and an assist. The Mercury won a close game, as they beat the Fire 73-70.

Phoenix Mercur

Sep 19, 2025; Phoenix, Arizona, USA; A fan holds up a sign during the second half of game three of round one for the 2025 WNBA Playoffs at PHX Arena between the Phoenix Mercury and the New York Liberty. Mandatory Credit: Joe Camporeale-Imagn Images / Joe Camporeale-Imagn Images

Earlier in the season, Bonfiglio had another game of 10 or more points. In a game against the Minnesota Lynx, she had 11 points, two assists and a rebound. Phoenix won that game, and they had two other players in double digits. Harrison was their leading scorer with 14 point, and she also had three rebounds and two assists. Adriana Pinto Moises had 11 points and two assists.

Bonfiglio had a solid stint with the Mercury, and for the time being, she is the only player to wear No. 53. She joins players like Tamicha Jackson, Pat Luckey and others who are the only ones to wear their respective numbers. Eventually, someone may join these players, but for now, Bonfiglio has a special place in Mercury history.

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