Murkel Dellien
Murkel Alejandro Dellien Velasco is a Bolivian tennis player. He has a career-high ATP singles ranking of No. 168, achieved on 15 July 2024. He is the current No. 2 Bolivian tennis player. He also has a career-high ATP doubles ranking of No. 174 achieved on 1 April 2024.
Dellien represents Bolivia at the Davis Cup, where he has a W/L record of 2–4.
College career
Dellien played college tennis at Wichita State.Professional career
In 2021 Dellien defeated Zizou Bergs in his first Davis Cup rubber.In July 2024, he won his maiden Challenger title at the 2024 Ion Țiriac Challenger in Brașov, Romania with a win over Dmitry Popko in the final. With his brother Hugo winning the title at the 2024 Iași Open, also in Romania, the Delliens became the first brothers to win a Challenger title in the same season since the Cerúndolos in 2022.
Personal life
He is the younger brother of fellow tennis player Hugo Dellien. Their father, Hugo Eduardo Dellien, represented Beni Department as a substitute member of the Chamber of Deputies for the Social Democratic Power alliance from 2006 to 2010.ATP Challenger Tour finals
Singles: 4 (1 title, 3 runner-up)
| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score | ||||||||||||||||||||||||||||||||||||||||||||||
| Loss | 0–1 | 2023 Challenger de Tigre – Singles| | Tigre, Argentina | Challenger | Clay |  dts|Mar 2024Doubles: 5 (3 titles, 2 runner-ups)
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dts|May 2022