Mattison, who joined the Silver and Black as a free agent this offseason after spending his first five NFL seasons with the Minnesota Vikings, recently concluded his first OTAs and mandatory minicamp with the Raiders.
This week, Mattison received a huge honor: His alma mater, San Bernardino High School, retired his jersey on Thursday. "It's extremely special," Mattison told Pep Fernandez when he joined "The Inland Sports Show" on Wednesday. "It's one of those things that, a lot of people, they dream of. Making it to the NFL, dream of playing Division I football, and dream of getting their jersey retired. It's something that's a dream coming true, it's definitely something that I'm honored.
While back home, Mattison is also partnering with The Athletes for Life Foundation and the IAM Gifted Foundation to host a youth football camp from Friday to Sunday..