Eubanks/McDonald and Kubler/Peers will take on each other on Saturday July 30 in the semifinals of the 2022 Croatia open.
Brooksby recorded a comfortable victory against Frenchman Benoit Paire in the first round of the competition by a score of 6-3, 6-1.
Jannik Sinner defeated American Mackenzie McDonald despite leg injury. Andrey Rublev won against Christian Garin in four sets.
Musetti has been quite impressive on clay so far and his previous win came at the Monte Carlo Masters when he beat world no. 9 Felix Auger-Alliasme.
In what was his first clay appearance since Rome in 2019, Kyrgios took some time to find his footing, playing his unique brand of tennis.
The 20-year-old Italian erased five match points against Pablo Carreno Busta in a 5-7, 7-5, 7-5 victory.
McDonald had a good string of results in Challenger-level tournaments from September to October, winning his first ITF Pro Circuit title.
Daniil Medvedev didn't face a break point and converted three of his seven break chances, completing the match in 72 minutes.