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.
Astier Nicolas
Astier Nicolas( born 19 January 1989) is a French equestrian.
He represented his country at the 2016 Summer Olympics, where he won the gold medal in the team eventing and the silver in the individual eventing.
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.
Miloš Zličić
Miloš Zličić( born 29 December 1999) is a Serbian football forward.
He is a younger brother of Lazar Zličić.
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.
Vadim Vlasov
Vadim Nikolayevich Vlasov( born 19 December 1980) is a former Russian football player.
He is a younger brother of Dmitri Vlasov.
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.
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.
Sergiy Stakhovsky
Sergiy Eduardovych Stakhovsky( born January 6, 1986) is a Ukrainian professional tennis player.
Stakhovsky turned professional in 2003 and had been playing mostly at the Challenger level from 2005 – 2008.
His career- high singles ranking is World No. 31( September 2010) and he has reached as high as No. 33 in doubles the same month.
He won his first career title in March 2008, as a lucky loser ranked no.
209, defeating top seed Ivan Ljubičić in the final, thus becoming the first lucky loser to win a title since Christian Miniussi in 1991.
He is the elder brother of tennis player Leonard Stakhovsky.
He is currently coached by Fabrice Santoro.
He is well known for beating eight- time winner and defending champion Roger Federer in the 2nd round of the 2013 Wimbledon Championships ending his record run of 36 consecutive Grand Slam quarterfinals.
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.

Question: Who is younger, Sergiy Stakhovsky or Astier Nicolas?
Answer: Astier Nicolas