WNBA Player Development Update: Nine Spots Still Open

The Phoenix Mercury signed Shay Ciezki to a developmental contract on Monday, the team announced. Ciezki, a former First-Team All-Big Ten player, fills a roster spot that opened after Kiana Williams signed a full-time contract with the Los Angeles Sparks on Friday.

Who is Shay Ciezki?

Ciezki went undrafted in 2026 following a collegiate career split between Penn State and Indiana, where she spent two years at each institution. During her senior season, she averaged 22.8 points, 3.8 rebounds, 3.1 assists, and 1.5 steals per game.

The team’s announcement highlights Ciezki’s efficiency from the field. Last year, she recorded a 52.6% field goal percentage, 44.6% from three-point range, and 90.8% from the free-throw line.

Did You Know? Players signed to WNBA developmental contracts earn $750 per week and are eligible to appear in a maximum of 12 games.

Why did the Mercury change their roster?

The move follows the departure of Kiana Williams, who signed with the Los Angeles Sparks. Williams, drafted in 2021, provided more professional experience than Ciezki and averaged 4.8 points per game during her time as a developmental player for Phoenix.

Ciezki joins rookie Marta Suarez as one of two developmental players for the Mercury. Suarez, originally drafted 16th overall by the Seattle Storm, signed with Phoenix at the start of the season and has appeared in two games.

Expert Insight: Samantha Carter notes that the Mercury are trading the veteran stability of a 2021 draftee like Williams for the high-volume scoring potential Ciezki demonstrated in the Big Ten. This shift suggests a willingness to prioritize raw collegiate production over established professional tenure for this specific roster spot.

How are developmental spots used across the WNBA?

League-wide, 21 of 30 potential developmental spots are currently filled. The Los Angeles Sparks have filled both of theirs with Kate Martin and Laura Ziegler, while the Seattle Storm have Taina Mair and one remaining open spot.

Shay Ciezki Highlights vs. Michigan State | Indiana Women's Basketball | 01/01/2026

According to current league data, the Las Vegas Aces and Toronto Tempo are the only teams with both of their developmental spots open.

What happens next for Shay Ciezki?

Ciezki may now attempt to translate her collegiate shooting percentages to the professional level. Depending on team needs, she could appear in up to 12 games this season.

Her progression will likely be measured against the performance of other developmental players in the league as teams evaluate who might earn a full-time roster spot, similar to the path taken by Kiana Williams.

Frequently Asked Questions

How much are WNBA developmental players paid?
They make $750 per week.

How many games can a developmental player play?
They can appear in up to 12 games.

Which WNBA teams still have both developmental spots open?
The Las Vegas Aces and Toronto Tempo both have two open spots.

How do you view the role of developmental contracts in the WNBA?