Patrick Willis retiring after eight seasons with 49ers
Patrick Willis of San Francisco 49ers retires - ESPN
Patrick Willis - Wikipedia
Patrick Willis still thriving after early 49ers retirement
Patrick Willis Explains Decision to Retire from NFL
Patrick Willis Explains Decision to Retire from NFL
Patrick Willis Explains Decision to Retire from NFL
49ers' Patrick Willis retires 'happy' – The Mercury News
49ers' Patrick Willis isn't in the Hall of Fame and is too busy to care - ESPN - NFL Nation- ESPN
Patrick Willis Explains Decision to Retire from NFL