On April 19, 2021, Pittsburgh Riverhounds SC signed 17 years and 1 month old forward Wyatt Borso for the 2021 season. Borso's signing marked the first time the club has brought a player into its first team on a USL Academy contract. The USL referenced it "a historic signing in Pittsburgh". He made his preseason pro debut on May 1, 2021, in the 75th minute against the
Philadelphia Union II. He made his regular season pro debut on August 11, 2021, in a 3–2 loss to Miami FC. He made his first professional start on September 4, 2021, against
San Antonio FC that ended in a 1–1 draw. Borso, a native of Aurora, Ill. was included in
TopDrawerSoccer.com USL Championship: 10 Amateurs To Know, in which he was called "one of the most interesting additions in the USL offseason." After the end of the 2021 season, Borso was cited as one of the "Best 5 Moments of the Year". He returned to Pittsburgh for his second season in 2022. After scoring multiple times in preseason off starts, Borso got an early regular season start on March 26, 2022, against
Detroit City FC in 1–1 draw, where his shot required Save of the Week USL honors and setup corner for goal . His next start came April 5, 2022, in the Second Round of the
US Open Cup where he played 90 minutes and assisted the second goal in a 2–0 win against Maryland Bobcats where "17-year-old Wyatt Borso drilled a cross the width of the pitch," according to TheCup.US "Wyatt Borso became the youngest player to record an assist for the Hounds (18 years, 28 days) when he hit a cross-field diagonal ball to Sims" according to USL Championship.com. == Notre Dame Fighting Irish ==