Roman Smishko
Roman Smishko is a retired Ukrainian professional footballer who played as a goalkeeper.
He is a younger brother of Ukrainian defender Bohdan Smishko.
Vadim Vlasov
Vadim Nikolayevich Vlasov( born 19 December 1980) is a former Russian football player.
He is a younger brother of Dmitri Vlasov.
Dmitri Varfolomeyev (footballer, born 1978)
Dmitri Nikolayevich Varfolomeyev( born 15 March 1978 in Leningrad) is a former Russian football player.
He is a younger brother of Sergei Varfolomeyev.
Zoran Švonja
Zoran Švonja( born 4 October 1995) is a Serbian football midfielder who plays for Bulgarian club Lokomotiv Sofia.
He is younger brother of Goran Švonja.
Adrián Otaegui
Adrián Otaegui Jaúregui( born 21 November 1992) is a Spanish professional golfer from San Sebastián who currently plays on the European Tour.
He has won twice on the European Tour.
Miloš Zličić
Miloš Zličić( born 29 December 1999) is a Serbian football forward.
He is a younger brother of Lazar Zličić.
Markus Weissenberger
Markus Weissenberger( born March 8, 1975) is an Austrian former footballer who played as a midfielder.
He is a younger brother of former Austria international player Thomas Weissenberger.
Peter O'Hara
Peter Joseph O' Hara( August 21, 1885 – April 11, 1977) was an Irish- American professional golfer who played in the early- to- mid 20th century.
His best major championship finishes were a fifth place tie in the 1920 PGA Championship, a T7 finish in the 1924 U.S. Open, and a T8 result in the 1929 U.S. Open.
He won the 1921 New Jersey Open and was a joint winner( with George Bowden) of the 1922 Houston Professional Golf tournament.
O' Hara won the 1931 Western Pennsylvania Open Championship as well as the 1934 Bedford Open.
Anton Shunto
Anton Shunto( born 31 May 1988) is a Belarusian professional footballer.
As of 2019, he plays for Molodechno.
He is a younger brother of Denis Shunto, who is a founder and former president of Krumkachy Minsk.
Alan Chipp
Alan Chipp( born 9 January 1937) is a former Australian rules footballer who played for the Fitzroy Football Club in the Victorian Football League( VFL).
He is a younger brother of politician Don Chipp.

Question: Who is younger, Adrián Otaegui or Peter O'Hara?
Answer: Adrián Otaegui