Patrick Willis Explains Decision to Retire from NFL
Outpouring of love and respect as Joe Staley says goodbye to the 49ers
Patrick Willis explains why he had to retire in prime of career
Patrick Willis explains why he had to retire in prime of career
Purdy: The worst day in 49ers history? – The Mercury News
Early Retirement in the N.F.L. and at Google, and the Paradox of Success - The New York Times
49ers' loss of Patrick Willis a jarring one – The Mercury News
Inside Borland's decision to leave - ABC30 Fresno
5 Takeaways from Patrick Willis' Explosive Week 16 Performance, News, Scores, Highlights, Stats, and Rumors
Patrick Willis: 49ers rift with Jim Harbaugh didn't cause retirement
The Borland effect: Powerful decision shows that if football is to end, fans must stop watching, Sports
10 Things Fans Should Know about Patrick Willis