- Height:202 cm.
- Place:Spoleto (ITALY)
Son of the Soviet Olympic volleyball player Vjačeslav Zajcev and the swimmer Irina Pozdnjakova, Ivan Zaytsev, nicknamed the "tsar", during his childhood, to follow his father's sporting activity, moves with his family to different parts of Europe [ 1]. He started playing volleyball at the age of 7 in St. Petersburg , then he moved to Belgorod for a year . In 1998, at the age of ten, he moved to Italy with his family .
In 2001 he started playing, as a setter, in the Perugia Volley youth team, before joining the first team in Serie A1 in the 2004-05 season.
In the 2006-07 season he moved to M. Roma, while the following season he was sold to the Top Volley Latina.
On 12 May 2008, after ten years of uninterrupted residence in Italy, he took an oath to obtain Italian citizenship,   soon after, he also received the first convocations in the Italian national team, with which he won gold at the Italian Games. Mediterranean of 2009 organized in Pescara.
In the 2008-09 season, also changing role as a spiker, returns to the team of Rome, relegated meanwhile in A2 Series, with which he won in the 2009-10 season the Italian cup category, being also awarded as MVP, and gets the promotion in the maximum Italian championship. In 2011, with the national team, he won silver at the European championship, while in 2012 he won the bronze medal at the Games of the XXX Olympics in London.
In the 2012-13 season he was hired by Lube of Macerata, a club with which he changed his role, moved to the opposite position, and where he remained for two years, with which he won the Italian Super Cup, also receiving the best player award [7 ] and the championship in the 2013-14 season; with the national team, in 2013, he won the bronze medal at the World League, also repeated in the 2014 edition, and at the Grand Champions Cup and the silver medal at the European championship.
For the 2014-15 championship he moved to Russia, in Dynamo Moscow, in the Superliga, with which he won the CEV Cup; in 2015 with the national team he won the silver medal at the World Cup and the bronze medal at the European championship. After two years in Russia, in April 2016 he arrived in Qatar to take part in the Amir Cup with Al-Arabi, winning the tournament and being awarded as the best player; during the Games of the XXXI Olympic Games in Rio de Janeiro, with the national team, wins the silver medal.
Back to Italy for the 2016-17 season, this time with the shirt of Sir Safety Perugia, in A1 Series, where he remains for two years and with which he wins the Italian Super Cup 2017, the Italian Cup 2017-18 and the championship 2017-18 . In the 2018-19 season he joined Modena, always in the top Italian division, with which he won the Italian Super Cup 2018.
Grand Champions Cup:
Italian Championship: 2
Emir Cup: 1
Italian Cup: 1
A2 Series Italian Cup: 1
Italian Super Cup: 3
2012, 2017, 2018
CEV Cup: 1
2010 – A2 Series Italian Cup: MVP
2012 - Italian Super Cup: MVP
2013 - World League: Best Masher
2013 - European Championship: Best service
2015 - World Cup: Best Opposite
2015 - European Championship: Best Opposite
2016 – Emir Cup: MVP
2017 - Champions League: Best Masher
First season in Modena Volley shirt.
Debut in Italian Super Cup, 6/10/18: Modena-Civitanova 3-2