 On December 31, 2017, the Oakland Raiders fired head coach Jack Del Rio and finished third in the AFC West with a 6–10 record.He finished the season with 79 combined tackles (58 solo), four pass deflections, an interception, and a sack in 15 games and 15 starts.Pro Football Focus gave Joseph an overall grade of 80.8, ranking him 35th among all qualified safeties in 2017.