Question: Stefano Nava was a backup for which former right-back who now is the assistant coach for the Ukrainian national team?

Context paragraphs:
Sviatoslav Mykhailiuk: Sviatoslav "Svi" Mykhailiuk (Ukrainian: Святосла́в Михайлю́к , ] ; born June 10, 1997) is a Ukrainian basketball player who currently plays college basketball at the University of Kansas.  He played for Cherkaski Mavpy in the Ukrainian Basketball SuperLeague from 2012 to 2014.  He also plays for the Ukrainian national team in the 2016 FIBA Europe Under-20 Championship.

Maryna Tkachenko: Maryna Ihorivna Tkachenko, also spelled Marina, (Ukrainian: Марина Ігорівна Ткаченко , born 29 August 1965 in Mukacheve, Ukrainian SSR) is a Ukrainian basketball player.  She won the gold medal at the 1992 Summer Olympics, with the Unified Team of twelve former Soviet Republics, and a fourth place at the 1996 Summer Olympics with the Ukrainian national team.

Bob Hill: Robert W. Hill (born November 24, 1948) is an American basketball coach.  Hill grew up in Mount Sterling, Ohio moving to Worthington, Ohio for high school.  Upon graduating from high School, Hill entered Bowling Green State University.  During the summer of 2011, he was invited by Nike to help Taiwan men's basketball team as a consultant.  Most recently, Hill was the assistant coach of the Ukrainian national team at the 2014 FIBA World Cup and the 2015 Euroleague, as well as an assistant coach for the Phoenix Suns under the tenure of a former player of his, Earl Watson, back when he was considered an interim head coach.

Ana Tarrés: Anna Tarrés Campà (born 19 October 1967) is a synchronized swimming coach and former national synchronized swimmer from Spain.  She competed in the women's duet at the 1984 Summer Olympics.  After retiring from competition Tarrés began coaching at her swimming club, CN Kallipolis, in 1987, where she coached Gemma Mengual to international success.  In 1997 she was appointed as head coach of the Spanish national synchronised swimming team: during her time in charge the team enjoyed great success, taking four Olympic medals, 26 World Championship medals, and 25 European Championship medals, however in September 2012 the Royal Spanish Swimming Federation informed her that her contract would not be extended beyond the end of the year.  Shortly afterwards 15 former members of the team issued a public letter criticising Tarrés for using authoritarian and demeaning behaviour in her role as head coach, although Mengual and national team captain Andrea Fuentes both spoke in Tarrés' defence, and Fuentes subsequently announced her retirement from elite competition in January 2013 due to demotivation as a result of the conflict between Tarrés and the federation.  After leaving the Spanish national team Tarrés was appointed as one of the coaches of the Ukrainian national team in 2015.

Stefano Nava: Stefano Nava (born 19 February 1969 in Milan) is an Italian former footballer, who played as a defender.  He is best known for having played for A.C. Milan in the early 1990s, where he was a backup for players such as Franco Baresi, Paolo Maldini, Mauro Tassotti and Alessandro Costacurta.

Iryna Blokhina: Iryna Olehivna Blokhina (Ukrainian: Блохіна Ірина Олегівна , born January 15, 1983, in Kyiv, Ukrainian SSR, USSR) is a Ukrainian sportsperson, singer, actor and TV host.  She is often involved in rhythmic gymnastics where she works with Ukrainian national team as a choreographer.

Mauro Tassotti: Mauro Tassotti (] ; born in Rome, 19 January 1960) is an Italian manager and former footballer who played predominantly as a right-back.  He currently serves as an assistant coach for the Ukraine national football team.  After making his Serie A debut with Lazio, he went on to play with A.C. Milan for 17 years.  He won 17 major titles with the club, namely five Serie A championships and three UEFA Champions League tournaments, reaching five finals in total.  He is mostly remembered for his role alongside Paolo Maldini, Franco Baresi, Alessandro Costacurta, Filippo Galli, and Christian Panucci in the Milan backline under Arrigo Sacchi and Fabio Capello, forming what is considered by many in the sport to be one of the greatest defensive lineups of all time.

Yevgen Murzin: Yevgen Murzin (born September 24, 1965, Novosibirsk) is a former Soviet and Ukrainian basketball player and current Ukrainian basketball coach.  Currently he is a coach of the Ukrainian national team, since 15 June 2015.  He coached the team at the EuroBasket 2015 and EuroBasket 2017.

Denys Dubrov: Denys Vitaliovich Dubrov (Ukrainian: Денис Віталійович Дубров , born 10 January 1989) is a swimmer from Ukraine.  A former member of the able-bodied Ukrainian National team, he now competes in Paralympic S10 and SM10 (individual medley) events.  At the 2016 Rio Paralympics he won three gold, three silver and two bronze medals, setting worlds record in the Men's SM10 200 m individual medley and S10 100m butterfly events.  s of April 2017 , he still holds the able-bodied Ukrainian National Record in the 200 m individual medley, a time of 2:00.53 which he set in 2009.

Ukraine national football team 1994: By late 1994 the Ukrainian Football Federation had secured recognition in time to compete in the UEFA Euro 1996 qualifying (it had failed to secure recognition before the 1994 FIFA World Cup qualification) Thus the Ukrainian national football team of 1994 was the first Ukrainian national team that played qualifying games and friendly matches.

Supporting paragraphs: Stefano Nava Mauro Tassotti
Answer: Mauro Tassotti