Fonoti first played
college football at
Cerritos College. He played in eleven games, starting ten, his freshman year in 2009 and earned second-team all-conference honors. He garnered All-California Region IV and First-team All-National Division Northern Conference recognition in 2010. Fonoti helped the
Cerritos Falcons to an 18–5 record during his two years with the team. Fonoti then transferred to play for the
Michigan State Spartans under
Mark Dantonio, where he was a three-year
letterman. He started the last eleven games of the 2011 season at right tackle. He totaled 31 knockdowns and played 659 snaps without allowing a sack. Fonoti played 136 snaps in the first two games of 2012 and was credited with seven knockdowns before breaking his foot in practice prior to the
Notre Dame game in Week 3, causing him to miss the rest of the season. He received the MSU Football Player Association's Community Service & Outreach Award in 2012. Fonoti played in all fourteen games, starting the last eleven games of the season, for the Spartans his senior year in 2013 and earned honorable mention All-
Big Ten honors after recording 45 knockdowns. Fonoti was also nominated for the
Allstate Good Works Team for his community service work in 2013. He played in 30 games, starting 24 at right tackle, during his time at Michigan State. ==Professional career==