An age-old rivalry headlines the WSL this weekend, as second-place Arsenal gears up for Sunday's Stamford Bridge showdown against league leaders — and reported recipient of USWNT star Naomi Girma — Chelsea FC.

Both clubs are on an undefeated tear, with Chelsea yet to register a loss halfway through the 22-match 2024/25 season.

Meanwhile, newly minted head coach Renée Slegers's Arsenal will attempt to avenge the Gunners' lone loss — a 2-1 October stumble to first-season WSL boss Sonia Bompastor's Blues.

Chelsea and Arsenal's dominance goes beyond the WSL, as both sides also advanced to the semifinals of the League Cup with massive shutout wins this past Wednesday.

Wright shines spotlight on WSL investment debate

A product of a system that often places men's and women's teams under the same leadership, Chelsea and Arsenal have set the standard for the top-flight UK league — and cast other clubs in their shadow.

As some WSL teams continue to snag top international stars, those seeing departures risk falling by the wayside — putting into question a system that might be inhibiting the league's growth and parity.

"In England, with the women's league, I believe if you gave some owners the opportunity to back out of supporting the women's game, I think they would, simply because I feel like they're all about profit," Arsenal legend and outspoken women's football advocate Ian Wright told The World Economic Forum in Davros this week.

Wright acknowledged that the women's game, which suffered from a near 50-year FA ban, is still "playing catch up on every level, infrastructure, training, coaching and every level of development."

"Because of the past it wasn't allowed to be built up, so we are trying to do that now. So, it needs owners, individuals and corporates that will invest."

Currently, the English FA is considering expanding the lower tiers of the women's football pyramid to incentivize development and professionalization at the club level.

How to watch WSL rivals Chelsea vs. Arsenal in the London Derby

Sunday's WSL rivalry match pits the league-leading Blues against the Gunners at 7:25 AM ET, with live coverage on ESPN2.

The 2025 NWSL Championship claimed a major viewership milestone on Saturday, as Gotham FC's 1-0 title win over the Washington Spirit became the first-ever league match to record an average of more than one million viewers.

The CBS evening broadcast averaged an impressive 1.184 million fans and peaked at 1.55 million viewers, making it the most-watched NWSL match of all time.

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The 2025 final marked a 22% viewership increase over the 967,900 fans who watched 2024's Orlando Pride victory — the previous NWSL viewership record-holder — and a 45% ratings gain over Gotham's 2023 championship win, which averaged 816,800 viewers.

Saturday's gains both matched the 22% viewership increase the NWSL regular season saw this year and also far exceeded the 2025 postseason's pre-final year-over-year increase of 5%.

Calling the one-million viewer mark "an extraordinary achievement" in Tuesday's league statement, NWSL commissioner Jessica Berman also noted that the "record-setting audience demonstrates the deepening connection fans have with our players, our clubs, and the world-class competition on the field, and it underscores the growing demand for women's soccer on the biggest stages."

"We're incredibly proud of what this moment represents for the NWSL and for everyone who continues to invest in and believe in the future of our game," Berman added.

Incoming offseason league Project B scored more major WNBA signings this week, as the upstart venture continues stacking its roster ahead of a planned November 2026 launch.

Indiana Fever guards Kelsey Mitchell and Sophie Cunningham have both publicly signed on with Project B, joining already announced talent like Seattle Storm star Nneka Ogwumike and Phoenix Mercury forward Alyssa Thomas, New York Liberty center Jonquel Jones, and Las Vegas Aces guard Jewell Loyd.

Also inking deals to join the inaugural season of Project B are Chicago Sky center Kamilla Cardoso, Golden State Valkyries forward Janelle Salaün, and Li Meng, a former Washington Mystics guard and current player in the Women's Chinese Basketball Association.

The multi-continent, Formula One-style traveling tournament circuit will ultimately sign 66 international stars, as Project B looks to field six 11-player teams in its debut 2026/2027 campaign.

Project B player signings will undoubtedly impact other offseason leagues like Unrivaled and Athletes Unlimited, but the new venture is also looming large over the ongoing WNBA CBA talks.

With negotiations racing toward this Sunday's extended deadline, Project B is putting WNBA compensation offerings under increased pressure, as the new league is reportedly anteing up multimillion-dollar salaries to its signees — far exceeding the 2025 WNBA maximum as well as the $1.1 million-max currently on the negotiating table.

World No. 1 Spain will take aim at a second-straight UEFA Nations League title this week, as La Roja take on No. 5 Germany in the first leg of the 2025 tournament's final at 2:30 PM ET on Friday.

The defending Nations League champions booked their spot in the 2025 final by dismantling No. 3 Sweden 5-0 on aggregate in the semifinal round, while Germany advanced after a tense 3-2 aggregate win over No. 6 France.

Germany must also contend with availability issues during Friday's match, as 28-year-old Bayern Munich forward and senior national team leading scorer Lea Schüller will be out due to family reasons.

To overcome that disadvantage, German head coach Christian Wück is reinforcing the team's back line, adding Athletic Bilbao defender Bibi Schulze Solano to the roster on Wednesday.

Also aiming to shut down Spain's offensive firepower on Friday is new NWSL champion goalkeeper Ann-Katrin Berger, who joined her German compatriots late following Gotham FC's title celebrations in New York this week.

While Spain and Germany will contend for the 2025 Nations League trophy this week, the pair — along with ousted semifinalists Sweden and France — have already booked spots in the top group of teams battling for tickets to the 2027 World Cup, with UEFA qualifying set to begin in 2026.

A full 19 months removed from their back-to-back Final Four runs, No. 11 Iowa basketball refuses to go away, with the Hawkeyes already notching one Top-25 win in the young 2025/26 NCAA campaign so far.

The still-unbeaten Hawkeyes took down No. 15 Baylor 57-52 last Thursday, with Iowa starting post players Hannah Stuelke and Ava Heiden combining for 28 points while guard Taylor Stremlow added another 12 off the bench in the marquee win.

"We have nice pieces," said Iowa head coach Jan Jensen this week. "But it's knowing when to play which pieces and with whom, and we're six games in."

The Hawkeyes have been finding their new identity under Jensen after a transformative period saw Iowa's longtime head coach Lisa Bluder retire while superstar guard Caitlin Clark joined the WNBA.

"Jan's been amazing," Stuelke told JWS at the Big Ten Media Day in October. "She stepped up like she needed to, and she's been growing every day since she's been the head coach, which it's really cool to see she cares. And it's a great environment for all of us."

"I have a year under my belt," Jensen echoed. "I know what this chair feels like now, and I have a little better of understanding of what that first road trip feels like, what that first big win feels like, or the tough loss feels like."

Iowa's season heats up with a ranked rivalry matchup against No. 10 Iowa State on Wednesday, December 10th.

The state rivals will tip off at 7 PM ET, with live coverage airing on ESPN.