As a freshman, Grasu took over as the starting center for the Oregon Ducks and remained the starter through his senior season. He earned All-Freshman Second-team in 2011, as well as All-Pac-12 Conference First-team in 2012, 2013 and 2014. He was named an All-American in 2013 and 2014. He was also a finalist for the Rimington Trophy in 2013 and 2014.[2]
Grasu was drafted in the third round by the Chicago Bears with the 71st overall pick of the 2015 NFL draft.[5] The move reunited him with college teammate Kyle Long.
On September 2, 2018, Grasu was released by the Bears.[7]
Baltimore Ravens (first stint)
On September 24, 2018, Grasu was signed by the Baltimore Ravens.[8] He played in three games before being released on November 24, 2018.[9]
Miami Dolphins
On December 12, 2018, Grasu was signed by the Miami Dolphins, but was released nine days later.[10][11]
Tennessee Titans
On February 7, 2019, Grasu was signed by the Tennessee Titans, reuniting with college teammate Marcus Mariota.[12] He was released on August 31, 2019.[13] He was re-signed on September 10, 2019.[14] He was released again on October 8, 2019.[15] He was signed once again on October 31, 2019.[16] He was released on December 3, 2019.
Baltimore Ravens (second stint)
On December 4, 2019, Grasu was claimed off waivers by the Ravens.[17]
San Francisco 49ers
On August 20, 2020, Grasu signed with the San Francisco 49ers.[18] He was released on September 5, 2020, and signed to the practice squad the next day.[19][20] After being elevated to the active roster for the team's first two games, Grasu was promoted to the active roster on September 26, 2020.[21] He was placed on the team's reserve/COVID-19 list by the team on November 19, 2020,[22] and activated on November 25.[23] He was placed back on the COVID-19 list on December 28, 2020,[24] and activated on January 14, 2021.[25]
Las Vegas Raiders
On October 25, 2021, Grasu was signed to the Las Vegas Raiders practice squad.[26] After the Raiders were eliminated in the 2021 Wild Card round of the playoffs, he signed a reserve/future contract on January 17, 2022.[27]
On August 30, 2022, Grasu was waived by the Raiders and signed to the practice squad the next day.[28][29] He was promoted to the active roster on December 10.[30]
On August 29, 2023, Grasu was released by the Raiders and re-signed to the practice squad.[31] He was signed to the active roster on December 21.[32]
