Tavarelli started his career in the youth divisions of Tacuary and then moved to the youth divisions of Club Olimpia, where he made his debut in the first team squad in 1992, playing the Torneo Republica.[1] In Olimpia he would go on to win several national and international championships, becoming a fan-favorite. Tavarelli was a pivotal part of the 2002 Olimpia team that won the Copa Libertadores. His skills helped Olimpia win two key penalty shoot-outs against Grêmio of Porto Alegre (semi-finals) and São Caetano (finals). In 2004, he played for Grêmio of Brazil with little success. Tavarelli returned to Club Olimpia and also had a brief sting playing for Sportivo Luqueño before finally retiring. He earned the nickname "Mono" (monkey) because of his quick goalkeeping skills. He was also called "Lettuce Hands".
Tavarelli was also part of the Paraguay national team in the 2002 FIFA World Cup, playing the team's first two matches following the suspension of captain José Luis Chilavert prior to the tournament.[2]
Tavarelli's sister, Giselle, is married to Paraguayan footballer Roque Santa Cruz.
