Serena Williams is finally returning to competitive tennis. Here is what she missed.

Serena Williams is back playing competitive singles tennis for the first time since she won the 2017 Australian Open. She was roughly eight weeks pregnant when she won her 23rd career Grand Slam with a win over her sister, Venus, in Melbourne. More than a year later, the 36-year-old makes her return in the 2018 BNP Paribas Open at Indian Wells on Thursday, which also happens to be International Women’s Day.

”It’s official. My comeback is here,” she wrote in an Instagram post on Wednesday. “This Thursday I will start playing tennis again professionally for the first time since giving birth to my daughter. This whole month I am playing tournaments in California and Florida- both my home states. Thursday, the day I play my very first match, marks international women’s day.”

In her opening match at Indian Wells, Williams will face Kazakhstan’s Zarina Diyas. Serena was set to make her return to professional tennis at the 2018 Australian Open, but withdrew prior to the tournament because she felt she wasn’t ready. A few months later, she is.

Before watching her in action again, let’s take a look back at what happened in the sport for the past year without its most dominant player:

Venus, Petra Kvitova, Angelique Kerber were the only women in the field with Grand Slams crowns on their resumes going into the 2017 French Open. Kerber was ranked world No. 1 entering the tournament and the No. 1 seed at Roland Garros. Karolina Pliskova and Simona Halep — who were seeded second and third, respectively — were within striking distance of the top ranking when the clay competition began. Garbine Muguruza, Elina Svitolina, Dominika Cibulkova, Johanna Konta, Svetlana Kuznetsova, Agnieszka Radwanska and Venus rounded out the top 10 seeds.

Kerber wound up going out in the first round, as did Konta. The second round saw Cibulkova and Madison Keys eliminated. Pliskova made it all the way to the semifinals, but she fell to Halep in a hard-fought three-set match. In the other semifinal, Jelena Ostapenko disposed of Timea Bacsinszky, who had taken down Mladenovic in the quarterfinals.

Halep and Ostapenko battled for three sets in the final, with Ostapenko winning it, 4-6, 6-4, 6-3. It was her first ever Grand Slam title.

Serena would have been the two-time defending champion here, but instead, the favorites were her sister and many of the same players discussed above. Ostapenko made it to the quarterfinals as the 13th seed, but there she fell to Venus, who also dispatched Konta in the semifinals, both matches in straight sets.

On the other side of the bracket, Venus had an experienced foe in Muguruza, who was tired of losing finals to the Williams sisters. She took down Kuznetsova, and Magdalena Rybarikova in the semifinals, both in straight sets as well, and then faced Venus in the final.

After a close first set, Muguruza began dominating and ultimately won in straight sets, giving Venus her second loss in a Grand Slam final of 2017. Despite a second-round exit, Pliskova took over the No. 1 ranking at the end of the tournament as neither Kerber or Halep did enough to grab it.

Kerber, the defending champion, once again found herself on the losing end of a first-round matchup, this one to Naomi Osaka. This loss caused her to fall outside the top 10 in the WTA rankings. In Serena’s absence, Venus and a trio of other Americans gave the New York crowd athletes to cheer.

All four semifinalists wound up being Americans: Coco Vandeweghe, Keys, Venus and Sloane Stephens. Stephens bested Williams in three sets in one semifinal, while Keys made short work of Vandeweghe in the other. Neither Keys or Stephens had won a Grand Slam singles title before facing off in the final. That changed for Stephens as she bested Keys in straight sets, 6-3, 6-0.

With Serena still sidelined, all of Caroline Wozniacki, Halep, Muguruza, Svitolina, Pliskova and Ostapenko were in contention for the No. 1 ranking going into the first Grand Slam of the year. Halep wound up in a third-round match against American Lauren Davis, and had to save three match points. That match went for 48 games, but Halep still managed to make it to the final, as the top seed.

Halep took down Pliskova in the quarterfinals and Kerber in the semifinals. She met Wozniacki, who previously held the No. 1 ranking back in 2012 but had no Grand Slam titles to her name. Wozniacki bested Carla Suarez Navarro and Elise Mertens in the previous two matches, and then fought a hard three sets against Halep, before prevailing and becoming the first Danish player to win a Grand Slam singles title.

Svitolina, Ostapneko, Mladenovic, Vandeweghe and Caroline Garcia entered the WTA Top 10 for the first time during the 2017 season. Halep, Muguruza, Pliskova, Svitolina, Venus, Wozniacki, Ostapenko, Garcia, Konta, and Mladenovic were the Top 10 at the end of 2017.

Heading into Indian Wells, Wozniacki is still the No. 1-ranked woman in the world, ahead of Halep, Kerber, Svitolina, Kvitova, Mertens, Muguruza, Pliskova, Julia Gorges and Mihaela Buzarnescu, in that order. Mertens and above all possess more than 1,000 points, while Wozniacki sits with 2,630. Halep, in second, has 1,930, so it’s a decent gap.

In her return, Williams will face Diyas, 24, who is currently ranked No. 53 in the world. She doesn’t get a first-round bye like her sister, and she’ll be taking part in a night match against on Thursday. Halep, Wozniacki, Muguruza, Svitolina, Pliskova, Venus and others will be taking part in the action at the Paribas Open.