Paige Sinicki stepped onto the field at Hillsboro Ballpark on July 8, wearing a chest guard under her jersey to protect surgical incisions. Eight months after a Stage 2 breast cancer diagnosis, the 22-year-old infielder made her professional debut with the Portland Cascade.

Sinicki entered in the fifth inning at second base after starter Sis Bates took a fastball to the forearm. She faced Carolina Blaze pitcher Karlyn Pickens, the No. 1 overall pick in the 2025 AUSL Allocation Draft, and battled for eight pitches before grounding out. The Cascade won 4-2.

AUSL broadcaster Geoff Arnold called it during the telecast: "This is the best thing you're going to see on television today. I think it's one of the best things you're going to see in sports all year."

"When I heard Car (Carley Hoover) say 'one pitch' on the mound, it brought me back to times when I was in the treatment room just having to go one infusion at a time," Sinicki told the Beaverton Valley Times. "Just hearing those words circulating around the field, it just grounded me."

The former Oregon shortstop was diagnosed on November 11, 2025. What followed: surgery, eight rounds of chemotherapy, and radiation. She attended Cascade team meetings via Zoom throughout treatment.

Portland drafted Sinicki 20th overall in the December 2, 2025, AUSL Allocation Draft. The team placed her on the temporary inactive list on June 9 because she was not medically cleared, then reinstated her on Monday, July 7.

One day after her debut, Sinicki started at second base on Thursday, July 9, against the same Blaze squad and recorded four put-outs and three assists. The Cascade won that game 2-1 in eight innings behind Carley Hoover's 133-pitch complete game.

At Oregon, Sinicki started all 219 career games, hitting .297 with 65 stolen bases. As a junior in 2024, she became the first Duck to win the NFCA Rawlings Gold Glove Award, leading the Pac-12 with a .975 fielding percentage at shortstop. Her senior season in the Big Ten produced a .376 batting average, 50 RBIs, and 32 stolen bases as Oregon won the conference championship and reached the Women's College World Series.

Portland (11-7) opened a three-game series against the Chicago Bandits on Friday, July 10. The AUSL Championship begins Saturday, July 25, at Davis Diamond in College Station, Texas. Sinicki is on the active roster.