Question: Kelly Robert Pavlik, is an American former professional boxer who competed from 2000 to 2012, he won the unified WBC, WBO, "Ring" magazine and lineal middleweight titles, and made three successful defenses before losing them to Sergio Martínez, in which year, an Argentine former professional boxer who competed from 1997 to 2014?
Sentence (from "Sergio Martínez (boxer)"): He also fought at light middleweight, where he held the IBO title from 2003 to 2005, and the WBC interim title in 2008 (later elevated to full world champion status the following year).
Relevant evidence: No