World Series champ, Marlins Killer Ryan Zimmerman announces retirement from baseball
The story behind the Phillies' longstanding rule on retired numbers: Will they ever change it for 6, 11 and 26? - The Athletic
A look back at Ryan Howard's Phillies legacy
The Phillies need to retire Jimmy Rollins, Chase Utley and Ryan Howard's numbers. But first, they have to ditch their own rule about it.
Ryan Howard, No Asterisk - The New York Times
Former Phillies All-Star Ryan Howard Retires From Baseball
Ryan Howard Retirement 2019 MLB Logo Jersey Sleeve Patch Licensed Phillies - USA Sports Marketing
Ryan Howard – Society for American Baseball Research
Ryan Howard Signed Retirement Logo Baseball Phillies Autographed Steiner
Phillies: Will Ryan Howard's Number 6 Be Retired?
Ryan Howard Signed Philadelphia Phillies MLB Retirement Baseball JSA
Ryan Howard and the Top 10 First Basemen in Major League Baseball, News, Scores, Highlights, Stats, and Rumors
Former Phillies' 1B Ryan Howard announces retirement