[M T]

Ryann Nueshul is also not on the Stanford roster.  Must also be on the national team hoping to make the Olympics

(Ryann was MPSF Newcomer of the Year last year for Stanford WWP, 3rd team All-American, All-NCAA Tournament First Team)

I was only looking at those on the Senior National WWP team (which, by the way, has two Nueshul's that played at Stanford) at the USA Women's Water Polo site.  That site lists 16 on the roster currently.
Ryann is listed on the Junior National WWP team (with Sarah Klass, who is on Stanford's 2020 roster), but I suspect the listing may be old.

Ryann did play for the US in the FINA Women's Junior championships in September.

Here's a December article about the three Nueshul sisters, but it mentions the interview was earlier in the year.  It mentions a 17-player roster for the US team.

Alas, the 15-member US WWP team traveling to Australia this week does not include Ryann. (A majority (8) of those are current or former Stanford athletes plus 3 USC, 3 UCLA, 1 Princeton).  The US is on a 68-game winning streak, but had to beat the Netherlands with penalty shots 23-22 in December.   (The 3 matches in Australia will be streamed for us night owls.)

FINA rules indicate:

WP 5.1 Each team shall consist of a maximum of thirteen players: eleven field players and two goalkeepers.

WP 5.1.1 For Olympic Games only: Each team shall consist of a maximum of eleven players: ten field players and one goalkeeper.  One of the reserves may also be used as a substitute goalkeeper

I would take this to mean that Ryann was 17th on the roster and isn't one of the reserves.  
I don't know why Ryann isn't listed with this year's Stanford team.   Perhaps she withdrew from school to try to make the US National Team and now is taking a year's break?

So, it does appear Stanford WWP is down 3 players from last year, while UCLA & USC are down 1 each.

(Why do I feel that BobK knew all this and laid out a series of crumbs which I've only slowly picked up? I think he may be a little embarrassed by how much more he knows than the rest of us.)

[M T]

Ryann Nueshul is also not on the Stanford roster.  Must also be on the national team hoping to make the Olympics

(Ryann was MPSF Newcomer of the Year last year for Stanford WWP, 3rd team All-American, All-NCAA Tournament First Team)

I was only looking at those on the Senior National WWP team (which, by the way, has two Nueshul's that played at Stanford) at the USA Women's Water Polo site.  That site lists 16 on the roster currently.
Ryann is listed on the Junior National WWP team (with Sarah Klass, who is on Stanford's 2020 roster), but I suspect the listing may be old.

Ryann did play for the US in the FINA Women's Junior championships in September.

Here's a December article about the three Nueshul sisters, but it mentions the interview was earlier in the year.  It mentions a 17-player roster for the US team.

Alas, the 15-member US WWP team traveling to Australia this week does not include Ryann. (A majority (8) of those are current or former Stanford athletes plus 3 USC, 3 UCLA, 1 Princeton).  The US is on a 68-game winning streak, but had to beat the Netherlands with penalty shots 23-22 in December.   (The 3 matches in Australia will be streamed for us night owls.)

FINA rules indicate:

WP 5.1 Each team shall consist of a maximum of thirteen players: eleven field players and two goalkeepers.

WP 5.1.1 For Olympic Games only: Each team shall consist of a maximum of eleven players: ten field players and one goalkeeper.  One of the reserves may also be used as a substitute goalkeeper

I would take this to mean that Ryann was 17th on the roster and isn't one of the reserves.  
I don't know why Ryann isn't listed with this year's Stanford team.   Perhaps she withdrew from school to try to make the US National Team and now is taking a year's break?

So, it does appear Stanford WWP is down 3 players from last year, while UCLA & USC are down 1 each.

(Why do I feel that BobK knew all this and laid out a series of crumbs which I've only slowly picked up? I think he may be a little embarrassed by how much more he knows than the rest of us.)