Born in Santa Fe, Frutos started playing for Unión de Santa Fe and was later bought by San Lorenzo. Later Spanish club Las Palmas signed him but after an unsuccessful season of only one goal Argentina's Gimnasia y Esgrima de La Plata brought him back. He found again his level catching Independiente's attention, whom he joined for the Apertura 2004, scoring 19 goals in 28 matches. Frutos was as of 23 October 2005 the top scorer of the Apertura 2005 with 9 goals in 11 matches, but he lost that position because he was not able to play for Independiente for the rest of the season.
Frutos obtained a transfer from Independiente on 21 October 2005 but was only allowed to play for Anderlecht since January 2006. In his first season with R.S.C. Anderlecht, he scored 9 goals in the second half of the season, and conquered the 2005–06Belgian League. The 2006–07 season yielded more goals for Frutos, as he scored 17 goals in 27 appearances in both the Jupiler League and the UEFA Champions League. His goal-scoring was sorely missed in the early part of the 2007–08 season, until his return in the 2–2 draw against Roeselare, where he was a substitute and scored the goal that leveled the match. Frutos also scored two goals against Hapoel Tel Aviv FC in the UEFA Cupgroup stage. At the start of the 2009–10 season, he scored a goal against Süper Lig side Sivasspor during the third-round qualifying match for the Champions League, after coming on as a substitute.
Retirement
Frutos announced his retirement from professional football on 29 March 2010 at 28 due to a major injury on the Achilles tendon, tendinopathy, which prevents him from playing at a competitive level.
Coaching career
One day after his retirement it was announced that he would eventually work as scout for his last club R.S.C. Anderlecht. In 2011 he worked for Unión de Santa Fe as a coordinator for the youth teams and manager of their reserve team. He left his position in June 2013 In 2015, he was a part of the technical staff at Club Olimpia. On 1 January 2016, Frutos returned to Anderlecht and took charge of the U19 team. On 18 September 2017, he was appointed as caretaker manager for the first team. He was in charge for four games, getting three victories and one defeat, before a new manager was appointed on 3 October 2017. On 3 January 2019, he was appointed as manager of San Luis de Quillota. After adding just four points out of 18 possible, he was fired on 2 April 2019.
