Quick Hits: Donald Penn expresses gratitude to Raider Nation in his retirement
Donald Penn Reflects on Career & Praises Raider Nation as He Announces Retirement
Raiders' Donald Penn set to make his return to Tampa Bay – East Bay Times
Donald Penn 2017 Unparalleled Rookie Pink Swirlorama #83 Raiders RC
Raiders place right tackle Donald Penn on IR
Donald Penn retires as a Raider
Donald Penn new deal saves Raiders over $3 million in 2018, gives him more guaranteed money in 2019 - Silver And Black Pride
Donald Penn - NFL News, Rumors, & Updates
Donald Penn ends his holdout, PFF News & Analysis