Pittsburgh Pirates hurler Paul Skenes' girlfriend, Olivia Dunne, is enjoying her time away from baseball, as the former LSU gymnast has been attending the U.S. Open.Dunne shared a snippet from Wednesday's slate of games on social media. In an Instagram post, Dunne donned a chic white dress with a U.S. Open cap.She captioned her story:"We are so back."(Image source - Olivia Dunne Instagram)Dunne was at the venue for the second round of the tournament and shared a picture of three-time Grand Slam winner Carlos Alcaraz. The second-seed Alcaraz, who faced Italian Mattia Bellucci, was in action in the former LSU star's second story."Now that's a serve," Dunne captioned the picture of Alcaraz serving.(Image source - Olivia Dunne Instagram)The 2022 champion was relentless on the night, dispatching World No. 65 Bellucci in straight sets 6-1, 6-0, 6-3 to make it to the next round. Alvarez will face 32nd-seeded Italian Luciano Darderi next.If he continues extending his eight-game winning streak, the 22-year-old Spaniard could face Novak Djokovic in a potential semi-final bout.Paul Skenes' girlfriend, Olivia Dunne, cheers for World No. 1 Aryna SabalenkaOlivia Dunne called time on her gymnastics career in April after five years with the LSU Tigers. The former athlete has been a constant presence at PNC Park this season to cheer for her boyfriend, Paul Skenes.However, she is also cheering for other athletes, as the former LSU star dropped a three-word message for World No. 1 Aryna Sabalenka during her game against Rebeca Masarova in the first round of the U.S. Open earlier this week."Some badass women," Dunne captioned her post featuring the two players.Sabalenka breezed past Masarova for a 7-5, 6-1 win. In the second on Wednesday, the defending champion defeated Polina Kudermetova 7-6 (4), 6-2 to progress through to the third round.